All 353 Environment Previous Year Questions for UPSC Prelims, with answers and explanations. Click any question for the full solution.
Across 1995–2025, UPSC Prelims has asked 353 Environment questions — an average of 11.4 per year. The heaviest year was 2016 with 23 questions; the lightest was 1997 with 1. Use the year-wise split below to see where the paper has been concentrating.
| Year | Questions | Share |
|---|---|---|
| 2025 | 10 | 3% |
| 2024 | 15 | 4% |
| 2023 | 14 | 4% |
| 2022 | 16 | 5% |
| 2021 | 21 | 6% |
| 2020 | 18 | 5% |
| 2019 | 19 | 5% |
| 2018 | 13 | 4% |
| 2017 | 15 | 4% |
| 2016 | 23 | 7% |
| 2015 | 15 | 4% |
| 2014 | 21 | 6% |
| 2013 | 17 | 5% |
| 2012 | 22 | 6% |
| 2011 | 20 | 6% |
| 2010 | 17 | 5% |
| 2009 | 8 | 2% |
| 2008 | 8 | 2% |
| 2007 | 4 | 1% |
| 2006 | 3 | 1% |
| 2005 | 7 | 2% |
| 2004 | 5 | 1% |
| 2003 | 5 | 1% |
| 2002 | 5 | 1% |
| 2001 | 2 | 1% |
| 2000 | 3 | 1% |
| 1999 | 7 | 2% |
| 1998 | 7 | 2% |
| 1997 | 1 | 0% |
| 1996 | 5 | 1% |
| 1995 | 7 | 2% |
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