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In a food chain "Grass → Deer → Tiger", which trophic level has the LEAST energy available?
ADeer
BTiger
CGrass
DAll equal
Answer & Solution
Correct answer: B. Tiger
1. Each trophic transfer loses ~90% of incoming energy.
2. Tiger is at the highest level here, so it receives the smallest remaining fraction.
3. Hence Tiger has the least usable energy.
_Source: NCERT Class 10 Science, Ch 13 "Our Environment", §13.1.1_
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