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Question

Assertion :Pila sometimes undergoes summer sleep or aestivation. Reason: Pila have to adopt themselves for unfavourable environment.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
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C
Assertion is correct but Reason is incorrect.
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D
Assertion is incorrect but Reason is correct.
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Pila aestivates in summer for a total period of about 6 months when the ponds and fields dry up and the temperature exceeds the vital limits of the active snail. This is to adapt them from the unfavourable environment. When the conditions are favourable, like in the rainy season they once again become active.
So, the correct answer is option A.

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