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Observe figure and answer the following ...

Observe figure and answer the following questions.

(i) The ecological term used to describe the DDT accumulation at different troohic levels ?
(ii) List any one effect of DDT accumulation on birds.
(iii) Will DDT accumulation lead to eutrophication ?
(iv) Does it affect the BOD?
(v) Name disease caused by accumulation of any heavy metal.

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