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Assertion (A) : In cold countries, lakes start freezing from top in winter.
Reason (R) : Water has maximum density at 4⁰C

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Both (A) and (R) are true and (R) is the correct explanation of (A)

(A) is true but (R) is false

(A) is false and (R) is true

Both (A) and (R) are true but (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

As 4⁰C water has maximum density so it is heavier always stay at the bottom and lighter water at the top at 0⁰C

get freezes.

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