The surface of a lake is frozen in severe winter but the water at its – McqOptions

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1.	The surface of a lake is frozen in severe winter but the water at its bottom is still liquid. What is the reason?
A.	The density of water is maximum at 4 degree C
B.	Ice is a bad conductor of heat
C.	Since, the surface of the lake is at the same temperature as the air, no heat is lost
D.	None of the above
Answer» B. Ice is a bad conductor of heat

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