The surface of a lake is frozen in severe winter but the water at its bottom is still liquid What is...........

General Science (Easy) Physics

The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason ?

Ice is a bad conductor of heat.

Since the surface of the lake is at the same temperature as the air, no heat is lost.

The density of water is maximum at 4°C.

None of the statements (a), (b) and (c) given is

Ice is a bad conductor of heat.

-Ice is less dense than liquid water, and when a solid crust of ice is on a lake, the water underneath is under pressure.

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