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(a) List the names of chemicals whose bi...

(a) List the names of chemicals whose biomagnification result in following diseases in humans : (i) Minamata disease (ii) Itai Itai disease
(b) Name the fertilizers whose excessive presence in water bodies results in algal bloom. What is the consequence of equtrophication ?

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(a) (i) Mercury (ii) Cadmium
(b) Nitrates and phosphate fertilizers. As a result of eutrophication, algal bloom occurs. When these algae die, aerobic decomposers become active and consume rapidly dissolved oxygen of water of decompose these dead algae. In the absence of dissolved oxygen, all aquatic life(including fishes) dies in the water body.
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PRADEEP-NATURAL RESOURCES : OUR ENVIRONMENT-SHORT ANSWER QUESTIONS
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