1.

DDT is non-biodegradable chemical when it enters food chain it gets accumulated in each tropical level. The phenomenon is called as (1) Eutrophication (2) Chemical amplification (3) Biomagnification (4) Chemical magnification

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(3) Biomagnification 

DDT is non-biodegradable when it enters in food chain it gets accumulated in each trophic level. This phenomenon is called Biomagnification.

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