{"id":3193,"date":"2025-05-27T14:30:32","date_gmt":"2025-05-27T09:00:32","guid":{"rendered":"https:\/\/theiashub.com\/upsc\/?p=3193"},"modified":"2025-12-19T12:47:30","modified_gmt":"2025-12-19T07:17:30","slug":"science-technology-questions-in-upsc-prelims-2025-trend-analysis","status":"publish","type":"post","link":"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/","title":{"rendered":"Science &#038; Technology Questions in UPSC Prelims 2025 \u2013 10-Year Trend Analysis"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-flat ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<label class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/label>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #127abf;color:#127abf\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #127abf;color:#127abf\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_Questions_asked_in_UPSC_Prelims_2025\" >Science &amp; Technology Questions asked in UPSC Prelims 2025<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_Questions_in_UPSC_Prelims_%E2%80%93_Trend_Analysis\" >Science &amp; Technology Questions in UPSC Prelims \u2013 Trend Analysis<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_Questions_from_UPSC_Prelims_2024\" >Science &amp; Technology Questions from UPSC Prelims 2024<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#What_Topics_to_Cover_Under_Science_Technology\" >What Topics to Cover Under Science &amp; Technology?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Why_Focus_on_Science_Technology_Questions_in_UPSC_Prelims\" >Why Focus on Science &amp; Technology Questions in UPSC Prelims?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_in_UPSC_Prelims_2025\" >Science &amp; Technology in UPSC Prelims 2025<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_Questions_in_UPSC_Prelims_2025\" >Science &amp; Technology Questions in UPSC Prelims 2025<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/theiashub.com\/upsc\/science-technology-questions-in-upsc-prelims-2025-trend-analysis\/#Science_Technology_Questions_in_UPSC_Prelims_FAQs\" >Science &amp; Technology Questions in UPSC Prelims FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Science_Technology_Questions_asked_in_UPSC_Prelims_2025\"><\/span><b>Science &amp; Technology Questions asked in UPSC Prelims 2025<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>1<\/strong>.\u00a0<strong>Consider the following types of vehicles:<\/strong><\/p>\n<p>I. Full battery electric vehicles<br \/>\nII. Hydrogen fuel cell vehicles<br \/>\nIII. Fuel cell electric hybrid vehicles<\/p>\n<p>How many of the above are considered as alternative powertrain vehicles?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) All the three<br \/>\n(d) None<\/p>\n<p><strong>2. With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements:<\/strong><\/p>\n<p>I. All types of UAVs can do vertical landing.<br \/>\nII. All types of UAVs can do automated hovering.<br \/>\nIII. All types of UAVs can use battery only as a source of power supply.<\/p>\n<p>How many of the statements given above are correct?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) All the three<br \/>\n(d) None<\/p>\n<p><strong>3. In the context of electric vehicle batteries, consider the following elements:<\/strong><\/p>\n<p>I. Cobalt<br \/>\nII. Graphite<br \/>\nIII. Lithium<br \/>\nIV. Nickel<\/p>\n<p>How many of the above usually make up battery cathodes?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) Only three<br \/>\n(d) All the four<\/p>\n<div id=\"metaslider-id-5575\" style=\"width: 100%;\" class=\"ml-slider-3-107-0 metaslider metaslider-flex metaslider-5575 ml-slider has-dots-nav ms-theme-default-base\" role=\"region\" aria-label=\"New Slideshow\" data-height=\"300\" data-width=\"700\">\n    <div id=\"metaslider_container_5575\">\n        <div id=\"metaslider_5575\">\n            <ul aria-live='off' class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-5579 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"400-X-180cdr-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/mains\/upsc-qep-2026-batch-5-english\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/400-X-180cdr-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5579 msDefaultImage\" title=\"400 X 180cdr\" \/><\/a><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-5580 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"pocket-notes-website-400x180-1-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/upsc-cse-books\/qep-pocket-notes-2.0\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/pocket-notes-website-400x180-1-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5580 msDefaultImage\" title=\"pocket-notes-website-400x180\" \/><\/a><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-5581 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"web-site-banner-toppers-book.-400x180-1-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/upsc-cse-books\/toppers-handwritten-upsc-pyq-4-books\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/web-site-banner-toppers-book.-400x180-1-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5581 msDefaultImage\" title=\"web site banner toppers book. 400x180\" \/><\/a><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div>\n<p><strong>4. Consider the following:<\/strong><\/p>\n<p>I. Cigarette butts<br \/>\nII. Eyeglass lenses<br \/>\nIII. Car tyres<\/p>\n<p>How many of them contain plastic?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) All the three<br \/>\n(d) None<\/p>\n<p><strong>5. Consider the following substances:<\/strong><\/p>\n<p>I. Ethanol<br \/>\nII. Nitroglycerine<br \/>\nIII. Urea<\/p>\n<p>Coal gasification technology can be used in the production of how many of them?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) All the three<br \/>\n(d) None<\/p>\n<p><strong>6. What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?<\/strong><\/p>\n<p>(a) These are alternatives to hydro-fluorocarbon refrigerants<br \/>\n(b) These are explosives in military weapons<br \/>\n(c) These are high-energy fuels for cruise missiles<br \/>\n(d) These are fuels for rocket propulsion<\/p>\n<p><strong>7. Consider the following statements:<\/strong><\/p>\n<p>I. It is expected that Majorana 1 chip will enable quantum computing.<br \/>\nII. Majorana 1 chip has been introduced by Amazon Web Services (AWS).<br \/>\nIII. Deep learning is a subset of machine learning.<\/p>\n<p>Which of the statements given above are correct?<\/p>\n<p>(a) I and II only<br \/>\n(b) II and III only<br \/>\n(c) I and III only<br \/>\n(d) I, II and III<\/p>\n<p><strong>8. With reference to monoclonal antibodies, often mentioned in news, consider the following statements:<\/strong><\/p>\n<p>I. They are man-made proteins.<br \/>\nII. They stimulate immunological function due to their ability to bind to specific antigens.<br \/>\nIII. They are used in treating viral infections like that of Nipah virus.<\/p>\n<p>Which of the statements given above are correct?<\/p>\n<p>(a) I and II only<br \/>\n(b) II and III only<br \/>\n(c) I and III only<br \/>\n(d) I, II and III<\/p>\n<p><strong>9. Consider the following statements:<\/strong><\/p>\n<p>I. No virus can survive in ocean waters.<br \/>\nII. No virus can infect bacteria.<br \/>\nIII. No virus can change the cellular transcriptional activity in host cells.<\/p>\n<p>How many of the statements given above are correct?<\/p>\n<p>(a) Only one<br \/>\n(b) Only two<br \/>\n(c) All the three<br \/>\n(d) None<\/p>\n<p><strong>10. Consider the following statements:<\/strong><\/p>\n<p><strong>Statement I:<\/strong><\/p>\n<p>Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries.<\/p>\n<p><strong>Statement II:<\/strong><\/p>\n<p>Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals.<\/p>\n<p><strong>Statement III:<\/strong><\/p>\n<p>Activated carbon can be easily synthesized from environmental wastes with high carbon content.<\/p>\n<p>Which one of the following is correct in respect of the above statements?<\/p>\n<p>(a) Both Statement II and Statement III are correct and both of them explain Statement I<br \/>\n(b) Both Statement II and Statement III are correct but only one of them explains Statement I<br \/>\n(c) Only one of the Statements II and III is correct and that explains Statement I<br \/>\n(d) Neither Statement II nor Statement III is correct<\/p>\n<p><strong>11. Consider the following statements:<\/strong><\/p>\n<p><strong>Statement I:<\/strong><\/p>\n<p>Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions.<\/p>\n<p><strong>Statement II:<\/strong><\/p>\n<p>Silica-bearing clay is mixed with limestone while manufacturing cement.<\/p>\n<p><strong>Statement III:<\/strong><\/p>\n<p>Limestone is converted into lime during clinker production for cement manufacturing.<\/p>\n<p>Which one of the following is correct in respect of the above statements?<\/p>\n<p>(a) Both Statement II and Statement III are correct and both of them explain Statement I<br \/>\n(b) Both Statement II and Statement III are correct but only one of them explains Statement I<br \/>\n(c) Only one of the Statements II and III is correct and that explains Statement I<br \/>\n(d) Neither Statement II nor Statement III is correct<\/p>\n<p><strong>12. Consider the following statements:<\/strong><\/p>\n<p><strong>Statement I:<\/strong><\/p>\n<p>At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the \u2018Declaration on Climate and Health\u2019.<\/p>\n<p><strong>Statement II:<\/strong><\/p>\n<p>The COP28 Declaration on Climate and Health is a binding declaration; and if signed, it becomes mandatory to decarbonize health sector.<\/p>\n<p><strong>Statement III:<\/strong><\/p>\n<p>If India\u2019s health sector is decarbonized, the resilience of its health-care system may be compromised.<\/p>\n<p>Which one of the following is correct in respect of the above statements?<\/p>\n<p>(a) Both Statement II and Statement III are correct and both of them explain Statement I<br \/>\n(b) Both Statement II and Statement III are correct but only one of them explains Statement I<br \/>\n(c) Only one of the Statements II and III is correct and that explains Statement I<br \/>\n(d) Neither Statement II nor Statement III is correct<\/p>\n<p><strong>13. Consider the following statements:<\/strong><\/p>\n<p><strong>Statement I:<\/strong><\/p>\n<p>Scientific studies suggest that a shift is taking place in the Earth\u2019s rotation and axis.<\/p>\n<p><strong>Statement II:<\/strong><\/p>\n<p>Solar flares and associated coronal mass ejections bombarded the Earth\u2019s outermost atmosphere with tremendous amount of energy.<\/p>\n<p><strong>Statement III:<\/strong><\/p>\n<p>As the Earth\u2019s polar ice melts, the water tends to move towards the equator.<\/p>\n<p>Which one of the following is correct in respect of the above statements?<\/p>\n<p>(a) Both Statement II and Statement III are correct and both of them explain Statement I<br \/>\n(b) Both Statement II and Statement III are correct but only one of them explains Statement I<br \/>\n(c) Only one of the Statements II and III is correct and that explains Statement I<br \/>\n(d) Neither Statement II nor Statement III is correct<\/p>\n<p><strong>14. Consider the following statements:<\/strong><\/p>\n<p><strong>Statement I:<\/strong><\/p>\n<p>Article 6 of the Paris Agreement on climate change is frequently discussed in global discussions on sustainable development and climate change.<\/p>\n<p><strong>Statement II:<\/strong><\/p>\n<p>Article 6 of the Paris Agreement on climate change sets out the principles of carbon markets.<\/p>\n<p><strong>Statement III:<\/strong><\/p>\n<p>Article 6 of the Paris Agreement on climate change intends to promote inter-country non-market strategies to reach their climate targets.<\/p>\n<p>Which one of the following is correct in respect of the above statements?<\/p>\n<p>(a) Both Statement II and Statement III are correct and both of them explain Statement I<br \/>\n(b) Both Statement II and Statement III are correct but only one of them explains Statement I<br \/>\n(c) Only one of the Statements II and III is correct and that explains Statement I<br \/>\n(d) Neither Statement II nor Statement III is correct<\/p>\n<p><strong>15. Which one of the following launched the \u2018Nature Solutions Finance Hub for Asia and the Pacific\u2019?<\/strong><\/p>\n<p>(a) The Asian Development Bank (ADB)<br \/>\n(b) The Asian Infrastructure Investment Bank (AIIB)<br \/>\n(c) The New Development Bank (NDB)<br \/>\n(d) The International Bank for Reconstruction and Development (IBRD)<\/p>\n<p><strong>16<\/strong>.\u00a0<strong>With reference to \u2018Direct Air Capture\u2019, an emerging technology, which of the following statements is\/are correct?<\/strong><\/p>\n<p>I. It can be used as a way of carbon sequestration.<br \/>\nII. It can be a valuable approach for plastic production and in food processing.<br \/>\nIII. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel.<\/p>\n<p>Select the correct answer using the code given below:<\/p>\n<p>(a) I and II only<br \/>\n(b) III only<br \/>\n(c) I, II and III<br \/>\n(d) None of the above statements is correct<\/p>\n<p><strong>17. Regarding Peacock tarantula (Gooty tarantula), consider the following statements:<\/strong><\/p>\n<p>I. It is an omnivorous crustacean.<br \/>\nII. Its natural habitat in India is only limited to some forest areas.<br \/>\nIII. In its natural habitat, it is an arboreal species.<\/p>\n<p>Which of the statements given above is\/are correct?<\/p>\n<p>(a) I only<br \/>\n(b) I and III<br \/>\n(c) II only<br \/>\n(d) II and III<\/p>\n<p><strong>18. Consider the following statements:<\/strong><\/p>\n<p>I. Carbon dioxide (CO\u2082) emissions in India are less than 0.5 t CO\u2082 \/ capita.<br \/>\nII. In terms of CO\u2082 emissions from fuel combustion, India ranks second in Asia-Pacific region.<br \/>\nIII. Electricity and heat producers are the largest sources of CO\u2082 emissions in India.<\/p>\n<p>Which of the statements given above is\/are correct?<\/p>\n<p>(a) I and III only<br \/>\n(b) II only<br \/>\n(c) II and III only<br \/>\n(d) I, II and III<\/p>\n<p><strong>19. Consider the following pairs :<\/strong><\/p>\n<p>Plant Description<\/p>\n<p>I. Cassava : Woody shrub<br \/>\nII. Ginger : Herb with pseudostem<br \/>\nIII. Malabar spinach : Herbaceous climber<br \/>\nIV. Mint : Annual shrub<br \/>\nV. Papaya : Woody shrub<\/p>\n<p>How many of the above pairs are correctly matched?<\/p>\n<p>(a) Only two<br \/>\n(b) Only three (marked)<br \/>\n(c) Only four (also marked)<br \/>\n(d) All the five<\/p>\n<p><strong>20. With reference to the planet Earth, consider the following statements:<\/strong><\/p>\n<p>I. Rain forests produce more oxygen than that produced by oceans.<br \/>\nII. Marine phytoplankton and photosynthetic bacteria produce about 50% of world\u2019s oxygen.<br \/>\nIII. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air.<\/p>\n<p>Which of the statements given above is\/are correct?<\/p>\n<p>(a) I and II<br \/>\n(b) II only<br \/>\n(c) I and III<br \/>\n(d) None of the above statements is correct<\/p>\n<table>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/theiashub.com\/upsc\/upsc-prelims-paper-2025\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Prelims Question Paper 2025<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/theiashub.com\/upsc\/?p=3094&amp;preview=true\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">UPSC Prelims Answer Key 2025<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Science_Technology_Questions_in_UPSC_Prelims_%E2%80%93_Trend_Analysis\"><\/span><b>Science &amp; Technology Questions in UPSC Prelims \u2013 Trend Analysis<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The table below shows the number of <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\"> asked in the past 10 years. This data helps aspirants understand the weightage and prepare accordingly:<\/span><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3194\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/05\/Screenshot-2025-05-20-184322.png?resize=736%2C260&#038;ssl=1\" alt=\"\" width=\"736\" height=\"260\" srcset=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/05\/Screenshot-2025-05-20-184322.png?resize=300%2C106&amp;ssl=1 300w, https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/05\/Screenshot-2025-05-20-184322.png?resize=1024%2C360&amp;ssl=1 1024w, https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/05\/Screenshot-2025-05-20-184322.png?resize=768%2C270&amp;ssl=1 768w, https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/05\/Screenshot-2025-05-20-184322.png?w=1412&amp;ssl=1 1412w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Year<\/b><\/td>\n<td><b>Science &amp; Technology Questions<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2013<\/span><\/td>\n<td><span style=\"font-weight: 400;\">14<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2014<\/span><\/td>\n<td><span style=\"font-weight: 400;\">16<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2015<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2016<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2017<\/span><\/td>\n<td><span style=\"font-weight: 400;\">9<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2018<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2019<\/span><\/td>\n<td><span style=\"font-weight: 400;\">7<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2020<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2021<\/span><\/td>\n<td><span style=\"font-weight: 400;\">14<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2022<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2023<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2024<\/span><\/td>\n<td><span style=\"font-weight: 400;\">13<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">The trend of Science &amp; Technology questions in UPSC Prelims from 2013 to 2024 shows moderate but consistent weightage. On average, around 10\u201314 questions are asked each year, with a few fluctuations. For instance, the highest number of questions (16) appeared in 2014 and 14 in both 2013 and 2021, while the lowest (7) were seen in 2019. This indicates that Science &amp; Technology remains a key component of the General Studies Paper 1. Aspirants must stay updated with current scientific developments and have a clear understanding of fundamental concepts to perform well in this section.<\/span><\/p>\n<div id=\"metaslider-id-5575\" style=\"width: 100%;\" class=\"ml-slider-3-107-0 metaslider metaslider-flex metaslider-5575 ml-slider has-dots-nav ms-theme-default-base\" role=\"region\" aria-label=\"New Slideshow\" data-height=\"300\" data-width=\"700\">\n    <div id=\"metaslider_container_5575\">\n        <div id=\"metaslider_5575\">\n            <ul aria-live='off' class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-5579 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"400-X-180cdr-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/mains\/upsc-qep-2026-batch-5-english\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/400-X-180cdr-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5579 msDefaultImage\" title=\"400 X 180cdr\" \/><\/a><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-5580 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"pocket-notes-website-400x180-1-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/upsc-cse-books\/qep-pocket-notes-2.0\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/pocket-notes-website-400x180-1-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5580 msDefaultImage\" title=\"pocket-notes-website-400x180\" \/><\/a><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-5581 ms-image \" aria-roledescription=\"slide\" data-date=\"2025-10-11 11:47:58\" data-filename=\"web-site-banner-toppers-book.-400x180-1-scaled-700x300.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/theiashub.com\/courses\/upsc-cse-books\/toppers-handwritten-upsc-pyq-4-books\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/theiashub.com\/upsc\/wp-content\/uploads\/2025\/10\/web-site-banner-toppers-book.-400x180-1-scaled.jpg?resize=700%2C300&#038;ssl=1\" height=\"300\" width=\"700\" alt=\"\" class=\"slider-5575 slide-5581 msDefaultImage\" title=\"web site banner toppers book. 400x180\" \/><\/a><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Science_Technology_Questions_from_UPSC_Prelims_2024\"><\/span><b>Science &amp; Technology Questions from UPSC Prelims 2024<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><b> Consider the following:<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Battery storage<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Biomass generators<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Fuel cells<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Rooftop solar photovoltaic units<\/span><\/p>\n<p><b>How many of the above are considered \u201cDistributed Energy Resources\u201d?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(a) Only one<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(b) Only two<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(c) Only three<\/span><\/p>\n<p><b>(d) All four<\/b><\/p>\n<ol start=\"2\">\n<li><b> Consider the following plants<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Groundnut<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Horse-gram<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Soybean<\/span><\/p>\n<p><b>How many of the above belong to the pea family?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(a) Only one<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(b) Only two<\/span><\/p>\n<p><b>(c) All three<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(d) None<\/span><\/p>\n<p><b>Q.3 Which one of the following words\/phrases is most appropriately used to denote \u201can interoperable network of 3D virtual worlds that can be accessed simultaneously by millions of users, who can exert property rights over virtual items\u201d?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(a) Big data analytics<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(b) Cryptography<\/span><\/p>\n<p><b>(c) Metaverse<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(d) Virtual matrix<\/span><\/p>\n<p><b>Q.4 With reference to radioisotope thermoelectric generators (RTGs), consider the following statements :<\/b><\/p>\n<p><span style=\"font-weight: 400;\">RTGs are miniature fission reactors.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">RTGs are used for powering the onboard systems of spacecraft.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">RTGs can use Plutonium-238, which is a by-product of weapons development.<\/span><\/p>\n<p><b>Which of the statements given above are correct?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(a) 1 and 2 only<\/span><\/p>\n<p><b>(b) 2 and 3 only<\/b><\/p>\n<p><span style=\"font-weight: 400;\">(c) 1 and 3 only<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(d) 1, 2 and 3<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Topics_to_Cover_Under_Science_Technology\"><\/span><b>What Topics to Cover Under Science &amp; Technology?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">To excel in <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\">, aspirants should focus on the following key areas:<\/span><\/p>\n<h3><b>1. Space Technology<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ISRO missions (Chandrayaan, Mangalyaan, Aditya-L1)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Satellite launches and their purposes<\/span><\/li>\n<\/ul>\n<h3><b>2. Biotechnology<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Genetically Modified Crops<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DNA Technology Regulations<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Stem cell research and cloning<\/span><\/li>\n<\/ul>\n<h3><b>3. Defence Technology<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Missiles and defence systems (Agni, BrahMos, etc.)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Indigenous defence programs<\/span><\/li>\n<\/ul>\n<h3><b>4. IT &amp; Communication<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">5G technology<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cybersecurity<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Artificial Intelligence, Blockchain<\/span><\/li>\n<\/ul>\n<h3><b>5. Health &amp; Medical Technology<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">mRNA vaccines, Covid-19 vaccine technologies<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Public health systems and digital health platforms<\/span><\/li>\n<\/ul>\n<h3><b>6. Nuclear and Renewable Energy<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Thorium technology, reactors<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Solar energy, wind power, hydrogen mission<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Why_Focus_on_Science_Technology_Questions_in_UPSC_Prelims\"><\/span><b>Why Focus on Science &amp; Technology Questions in UPSC Prelims?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here are a few reasons why <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\"> deserve extra attention:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Many questions are current-affairs-based.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Requires minimum rote learning; conceptual clarity is key.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Easy scoring opportunity if concepts are strong.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reflects India\u2019s progress and initiatives on global platforms.<br \/>\n<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Cracking the <\/span><a href=\"https:\/\/theiashub.com\/upsc\/upsc-prelims-2025\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">UPSC Civil Services Preliminary Examination<\/span><\/a><span style=\"font-weight: 400;\"> requires a smart and focused strategy. Among the various subjects, <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\"> have gained considerable importance over the years. A careful review of the past 10 years reveals that questions from this section appear regularly and often test both conceptual understanding and awareness of current developments in technology.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This article provides a 10-year analysis of <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\">, highlighting their significance, pattern, and tips to prepare effectively.<\/span><\/p>\n<h2 data-start=\"0\" data-end=\"49\"><span class=\"ez-toc-section\" id=\"Science_Technology_in_UPSC_Prelims_2025\"><\/span><strong data-start=\"4\" data-end=\"49\">Science &amp; Technology in UPSC Prelims 2025<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"51\" data-end=\"573\">In the UPSC Prelims 2025, <strong data-start=\"77\" data-end=\"101\">Science &amp; Technology<\/strong> continued to hold significant weight with <strong data-start=\"144\" data-end=\"160\">15 questions<\/strong>, indicating its steady importance in the exam. The difficulty level of this section was largely <strong data-start=\"257\" data-end=\"282\">moderate to difficult<\/strong>, with questions testing both fundamental scientific understanding and awareness of recent technological developments. The section required not only conceptual clarity but also familiarity with current advancements, making it a key area for aspirants aiming to secure a strong overall score.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Science_Technology_Questions_in_UPSC_Prelims_2025\"><\/span><b>Science &amp; Technology Questions in UPSC Prelims 2025<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">UPSC Prelims 2025\u00a0 tested candidates on key Science &amp; Technology topics, emphasizing both fundamental concepts and recent advancements. Important areas include space technology (ISRO missions, satellite systems), biotechnology (CRISPR, vaccines), AI and robotics, and ICT (5G, 6G, Space Internet). Renewable energy, environmental technologies, nanotechnology, and cybersecurity are also crucial. Aspirants should focus on government schemes, climate-related innovations, and applications of these technologies in national development. A solid grasp of basics like DNA, RNA, and genetic engineering, combined with awareness of current scientific news and government policies, is essential to tackle Science &amp; Tech questions in the UPSC Prelims effectively.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>Conclusion<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A strong grasp of <\/span><b>Science &amp; Technology Questions in UPSC Prelims<\/b><span style=\"font-weight: 400;\"> can significantly boost your overall score. Focus on dynamic areas, stay updated with innovations, and integrate your preparation with current affairs. The UPSC increasingly favors interdisciplinary questions, so ensure you understand both the <\/span><b>concept<\/b><span style=\"font-weight: 400;\"> and its <\/span><b>application<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Science_Technology_Questions_in_UPSC_Prelims_FAQs\"><\/span><b>Science &amp; Technology Questions in UPSC Prelims FAQs<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<style>#sp-ea-3192 .spcollapsing { height: 0; overflow: hidden; transition-property: height;transition-duration: 300ms;}#sp-ea-3192{ position: relative; }#sp-ea-3192 .ea-card{ opacity: 0;}#eap-preloader-3192{ position: absolute; left: 0; top: 0; height: 100%;width: 100%; text-align: center;display: flex; align-items: center;justify-content: center;}#sp-ea-3192.sp-easy-accordion>.sp-ea-single {margin-bottom: 10px; border: 1px solid #e2e2e2; }#sp-ea-3192.sp-easy-accordion>.sp-ea-single>.ea-header a {color: #444;}#sp-ea-3192.sp-easy-accordion>.sp-ea-single>.sp-collapse>.ea-body {background: #fff; color: #444;}#sp-ea-3192.sp-easy-accordion>.sp-ea-single {background: #eee;}#sp-ea-3192.sp-easy-accordion>.sp-ea-single>.ea-header a .ea-expand-icon { float: left; color: #444;font-size: 16px;}.sp-ea-one.sp-easy-accordion .sp-ea-single .ea-header a {\r\n  padding: 7px;\r\n  background: #fff;\r\n}\r\n\r\n.sp-easy-accordion .sp-ea-single .ea-header a {\r\n  font-size: 1rem;\r\n}\r\n.sp-ea-one.sp-easy-accordion .sp-ea-single .ea-header a .ea-expand-icon {\r\n  font-size: 1rem;\r\n}\r\n\r\n.sp-easy-accordion .sp-ea-single .ea-header a .ea-expand-icon {\r\n  margin-right: 0px;\r\n}\r\n\r\n.sp-easy-accordion .sp-ea-single{\r\n background: #fff;\r\n}\r\n\r\n.ea-expand a{\r\n  background: #cfe2ff !important;\r\n}\r\n\r\n.sp-easy-accordion{\r\n  margin-bottom: 1rem;\r\n  margin-top: 1rem;\r\n}<\/style><div id=\"sp_easy_accordion-1747745835\"><div id=\"sp-ea-3192\" class=\"sp-ea-one sp-easy-accordion\" data-ea-active=\"ea-click\" data-ea-mode=\"vertical\" data-preloader=\"1\" data-scroll-active-item=\"1\" data-offset-to-scroll=\"0\"><div id=\"eap-preloader-3192\" class=\"accordion-preloader\"><img decoding=\"async\" src=\"https:\/\/theiashub.com\/upsc\/wp-content\/plugins\/easy-accordion-free\/public\/assets\/ea_loader.svg\" alt=\"Loader image\"\/><\/div><div class=\"ea-card ea-expand sp-ea-single\"><h3 class=\"ea-header\"><a class=\"collapsed\" id=\"ea-header-31920\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse31920\" aria-controls=\"collapse31920\" href=\"#\" aria-expanded=\"true\" tabindex=\"0\"><i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-minus\"><\/i> How important are Science &amp; Technology Questions in UPSC Prelims?<\/a><\/h3><div class=\"sp-collapse spcollapse collapsed show\" id=\"collapse31920\" data-parent=\"#sp-ea-3192\" role=\"region\" aria-labelledby=\"ea-header-31920\"> <div class=\"ea-body\"><p><span style=\"font-weight: 400\">\u00a0Science &amp; Technology holds consistent weightage in the UPSC Prelims, with 7\u201316 questions asked annually over the last 10 years. It's a scoring area if prepared well with a focus on conceptual clarity and current developments.<\/span><\/p><\/div><\/div><\/div><div class=\"ea-card sp-ea-single\"><h3 class=\"ea-header\"><a class=\"collapsed\" id=\"ea-header-31921\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse31921\" aria-controls=\"collapse31921\" href=\"#\" aria-expanded=\"false\" tabindex=\"0\"><i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> What topics should I focus on for Science &amp; Technology in UPSC Prelims?<\/a><\/h3><div class=\"sp-collapse spcollapse \" id=\"collapse31921\" data-parent=\"#sp-ea-3192\" role=\"region\" aria-labelledby=\"ea-header-31921\"> <div class=\"ea-body\"><p><span style=\"font-weight: 400\">\u00a0You should cover topics like space missions (ISRO), biotechnology, health technologies, IT and communication (like 5G, AI), defence technologies, and renewable energy. Stay updated with current affairs in these areas.<\/span><\/p><\/div><\/div><\/div><div class=\"ea-card sp-ea-single\"><h3 class=\"ea-header\"><a class=\"collapsed\" id=\"ea-header-31922\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse31922\" aria-controls=\"collapse31922\" href=\"#\" aria-expanded=\"false\" tabindex=\"0\"><i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Are NCERT books enough for Science &amp; Technology preparation in UPSC?<\/a><\/h3><div class=\"sp-collapse spcollapse \" id=\"collapse31922\" data-parent=\"#sp-ea-3192\" role=\"region\" aria-labelledby=\"ea-header-31922\"> <div class=\"ea-body\"><p><span style=\"font-weight: 400\">\u00a0NCERTs (Class 6\u201310 Science and Class 12 Biology) are good for basic understanding. However, for UPSC-level preparation, they should be supplemented with current affairs, PIB releases, and science-focused magazines like <\/span><i><span style=\"font-weight: 400\">Science Reporter<\/span><\/i><span style=\"font-weight: 400\">.<\/span><\/p><\/div><\/div><\/div><div class=\"ea-card sp-ea-single\"><h3 class=\"ea-header\"><a class=\"collapsed\" id=\"ea-header-31923\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse31923\" aria-controls=\"collapse31923\" href=\"#\" aria-expanded=\"false\" tabindex=\"0\"><i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> How can I prepare current affairs related to Science &amp; Technology?<\/a><\/h3><div class=\"sp-collapse spcollapse \" id=\"collapse31923\" data-parent=\"#sp-ea-3192\" role=\"region\" aria-labelledby=\"ea-header-31923\"> <div class=\"ea-body\"><p><span style=\"font-weight: 400\">\u00a0Read newspapers like <\/span><i><span style=\"font-weight: 400\">The Hindu<\/span><\/i><span style=\"font-weight: 400\"> or <\/span><i><span style=\"font-weight: 400\">Indian Express<\/span><\/i><span style=\"font-weight: 400\">, follow government press releases (PIB), and use monthly compilations by reliable coaching institutes. Focus on recent innovations, missions, and schemes.<\/span><\/p><\/div><\/div><\/div><div class=\"ea-card sp-ea-single\"><h3 class=\"ea-header\"><a class=\"collapsed\" id=\"ea-header-31924\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse31924\" aria-controls=\"collapse31924\" href=\"#\" aria-expanded=\"false\" tabindex=\"0\"><i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Do I need to study theoretical science for UPSC Prelims?<\/a><\/h3><div class=\"sp-collapse spcollapse \" id=\"collapse31924\" data-parent=\"#sp-ea-3192\" role=\"region\" aria-labelledby=\"ea-header-31924\"> <div class=\"ea-body\"><p><span style=\"font-weight: 400\">\u00a0No, UPSC focuses on application-based and current-affairs-oriented science. You need basic conceptual clarity, but there is no need to dive deep into complex theories or formulas unless they are relevant to current events.<\/span><\/p><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Explore 10-year trend analysis of Science &#038; Technology Questions in UPSC Prelims 2025. Get insights on key topics, question patterns, PYQs, and expert preparation tips to tackle 10\u201314 questions annually with clarity, current affairs, and smart strategy.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-3193","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/posts\/3193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/comments?post=3193"}],"version-history":[{"count":6,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/posts\/3193\/revisions"}],"predecessor-version":[{"id":6828,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/posts\/3193\/revisions\/6828"}],"wp:attachment":[{"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/media?parent=3193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/categories?post=3193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/theiashub.com\/upsc\/wp-json\/wp\/v2\/tags?post=3193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}