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the surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. what is the reason
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Question
The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason ?
A
Ice is bad conductor of heat.
B
The density of water is maximum at 4
0
C.
C
Since the surface of the lake is at the same temperature as the air, no heat is lost.
D
None of the statements (A), (B) and (C) given is correct.
Answer & Explanation
Option: [A]
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