Topic-wise IAS Environment & Ecology previous year questions with detailed solutions.
How many Environment & Ecology questions each topic contributed per year in IAS — darker cells mean more questions that year. Tap a topic to open its questions.
| Topic | Weightage | Total | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 |
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| 1998 |
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| 1996 |
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| Environment & Ecology | 100.0% | 243 | 5 | 9 | 12 | 13 | 13 | 14 | 11 | 12 | 10 | 12 | 9 | 9 | 17 | 15 | 14 | 14 | 9 | 7 | 7 | 5 | 1 | 2 | 4 | 1 | 2 | 3 | 1 | 5 | 2 | 5 |
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| All topics | 243 | 5 | 9 | 12 | 13 | 13 | 14 | 11 | 12 | 10 | 12 | 9 | 9 | 17 | 15 | 14 | 14 | 9 | 7 | 7 | 5 | 1 | 2 | 4 | 1 | 2 | 3 | 1 | 5 | 2 | 5 |
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