Ecology, biodiversity, conservation, climate change, and environmental current affairs.
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Environment & Ecology has become a high-yield area for Prelims, tightly linked to current affairs — species in the news, protected areas, conventions, and climate policy — layered on core ecological concepts.
Use this page to practise the concepts and the current-affairs linkages together, and to revise the species, sites, and agreements you keep confusing.
A significant number of questions each year are environment-related, often connecting a concept (ecosystems, food chains, pollution) to something topical (a species, a report, or a summit).
Questions reward clarity on terms and the ability to distinguish similar items — conventions, protected-area categories, and conservation statuses — which regular practice builds.
Which one of the following best describes a “keystone species”?
A keystone species has an effect on its ecosystem far larger than its numbers would suggest; removing it can cause the ecosystem’s structure to change sharply. Abundance, endemism, and being introduced are separate ideas.
Pick this subject, browse PYQs by year, or start today’s daily drill.
One question at a time, with a timer — the way the real paper feels.
Read the explanation, and every mistake is saved to your notebook for revision.
It offers a large, current-affairs-linked question set every year, and the concepts are learnable with focused practice.
Practise regularly and review misses. Your mistake notebook groups wrong answers by topic so you can revise the exact items you confuse.
Yes — browse Environment PYQs by year in the PYQ bank to gauge the depth and style.
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