Solved UPSC CDS/OTA Question
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Q · Environmental PollutionMedium · 45s
Which of these can cause biomagnification in food chains? 1. DDT 2. Mercury 3. Nitrogen oxides Select the correct answer:
TopicEnvironmental Pollution
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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DDT and mercury accumulate and magnify up the food chain; NOx does not biomagnify.
Final Answer: Option B - 1 and 2 only