Question

The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason?; 1) Ice is a bad conductor of heat; 2) Since the surface of the lake is at the same temperature as the air, no heat is lost; 3) The density of water is maximum at 4°C; 4) None of the above

Answer 1

3) The density of water is maximum at 4°C;

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The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid because The density of water is maximum at 4°C;

Answer 2

Heya....

======= Answer =======

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

Ans -- The density of water is maximum at 4°C .....

So option C is correct...

Thank you