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A layer of ice forms on the surface of lakes in cold regions because
Question

A layer of ice forms on the surface of lakes in cold regions because

A.

Ice is less dense than liquid water

B.

There is no exchange of heat between water below and the cold air above

C.

Cold wind makes the surface water to freeze

D.

Ice is denser than liquid water

Correct option is A


Ice is less dense than liquid water, which is why it floats on the surface. Water has a unique property where its solid form is less dense, allowing ice to form an insulating layer on top, protecting aquatic life by keeping the water below from freezing completely.

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