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EVS MCQ - Food

1 Increasing concentration of toxic chemical in the food chain is called

Increasing concentration of toxic chemical in the food chain is called biomagnification. In simple terms, it means increased in toxicity at successively higher levels in a food chain.

2 Competition for food, light and space is most severe between

Competition for food, light and space is sever mostly in closely related species growing in the same habitat.

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Question:

Increasing concentration of toxic chemical in the food chain is called

A. ecological balance
B. biomagnification
C. trophic status
D. biodegradation

Correct answer: B

Explanation:

Increasing concentration of toxic chemical in the food chain is called biomagnification. In simple terms, it means increased in toxicity at successively higher levels in a food chain.

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