The following organisms form a food chain. Which of these will have the highest concentration of non biodegradable chemicals? Name the phenomenon associated with it
Insects, Hawks, grass, snake,frog

Dear Student.
Please find below the solution to the asked query.

Persistent pesticides such as DDT or non biodegradable chemicals pass into food chain and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in fat. Thus the organism having highest trophic level will have the highest amount of DDT. In this case hawk will have highest amount of chemicals.
The phenomenon is known as biomagnification, it is the increase in the concentration of a substance with the increase in the trophic level. ​ 

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hawk
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hawk will have the highest concentration of non bio-degradable chemical 
this process is called biological magnification .
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