Question

In winter, when the temperature goes below 0o C, lakes are liable to freeze. In which one of the following ways is this most likely to happen?

(A) The lake freezes from the centre first, and then into the banks.
(B) The lake freezes from the bottom up.
(C) All the water in the lake turns to ice at the same time.
(D) Ice forms at the surface first.​

Answer 1

Answer:

Answer is (D) Ice forms at the surface first..

water, being a special molecule, expands when it freezes, rather than contracts, meaning that the ice on top of the lake is less dense than the water underneath it. So, the surface can easily gets freeze.