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Question
If DDT is sprayed in a lake, after 15 years, its highest concentration will be found in ______.
Options
phytoplankton
zooplanktons
fish-eating birds
fishes
MCQ
Fill in the Blanks
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Solution
If DDT is sprayed in a lake, after 15 years, its highest concentration will be found in fish-eating birds.
Explanation:
DDT is non-biodegradable and biomagnifies as it passes through the food chain. Fish-eating birds occupy a higher trophic level than plankton and fish, so they accumulate the highest concentration among these choices.
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