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Asked: 2021-12-16T07:09:36+00:00 In:

It was observed that at places where DDT was used to control mosquitoes and other pests, the eggs of eagles would become fragile and break and the eagle almost became extinct. After DDT was banned by lawmakers, eagle population has recovered. The possible reason for this is:

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Poll Results

61.54%[A] DDT is non-biodegradable and hence found in largest concentration in tertiary consumers. ( 16 voters )
11.54%[B] DDT is non-biodegradable and found in largest concentration in producers. ( 3 voters )
11.54%[C] Largest concentration of DDT is found in secondary consumers on which eagle feeds. ( 3 voters )
15.38%[D] DDT is a strong chemical which makes the eggs fragile. ( 4 voters )
Based On 26 Votes

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DDT is a non-bio degradable pesticide and when sprayed, it finds its way to soil from where it enters the food chain, the concentration of DDT increases progressively as we go up the trophic level due to biological magnification.

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    1. [A] DDT is non-biodegradable and hence found in largest concentration in tertiary consumers.

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