DDT is soluble in (i) rather than water. It gets (ii) up in the food chain and disrupts (iii) metabolism in birds, causing eggshells to be thin and fragile. As a result, large birds such as the Brown Pelican, Ospreys, Falcons and Eagles became (iv) .

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(i) – Fat; (ii) – bioredified; (iii) – calcium; (iv) – endangered

(i) – Fat; (ii) – biomagnified; (iii) – calcium; (iv) – endangered

(i) – Fat; (ii) – biomagnified; (iii) – calcium; (iv) – extinct

(i) – Fat; (ii) – biomagnified; (iii) – phosphate; (iv) – endangered

answer is B.

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Detailed Solution

DDT is soluble in fat rather than water. It gets accumulated up in the food chain and disrupts calcium (Ca) metabolism in birds, causing eggshells to be thin and fragile. As a result, large birds such as the Brown Pelican, Ospreys, Falcons and Eagles became endangered.
Thus, biomagnification is having direct effect on several species of birds.

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