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A crane had DDT level as 5 ppm in its body. What would happen to the population of such birds? Explain giving reasons.

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A crane had DDT level as 5 ppm in its body. What would happen to the population of such birds?
Explain giving reasons.
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Increased conc. Of DDT in birds effects calcium metabolism in them. As a result, the egg shells become thin and break before maturity. It will result in decline in bird population.
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