Study the given aquatic food chain and answer the questions that follo

1.	Study the given aquatic food chain and answer the questions that follow:(i) Give reasons why there is a continuous increase in the DDT content in different trophic levels of the chain. (ii) Name the phenomenon responsible for the increase in DDT content.
Answer» (i) When DDT enters the food chain then they reach water. Since they are not degradable these get accumulated progressively at each trophic level. As they reach higher trophic levels, the concentration of DDT also increases. (ii) Biological magnification.

Study the given aquatic food chain and answer the questions that follow:(i) Give reasons why there is a continuous increase in the DDT content in different trophic levels of the chain. (ii) Name the phenomenon responsible for the increase in DDT content.

Answer»

(i) When DDT enters the food chain then they reach water. Since they are not degradable these get accumulated progressively at each trophic level. As they reach higher trophic levels, the concentration of DDT also increases.

(ii) Biological magnification.

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Study the given aquatic food chain and answer the questions that follow:(i) Give reasons why there is a continuous increase in the DDT content in different trophic levels of the chain. (ii) Name the phenomenon responsible for the increase in DDT content.

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