Question

The anamalous expansion of water results in formation of ice at the surface level.

• A. True
• B. False

Answer 1

The correct option is A

True

It is true, since water at 4^oC is the heaviest, this water settles on the bottom of the water body and the lightest i.e. the coolest layer accumulates on the top layer. So in the winter, the top of the water is always the first to freeze over. Since ice and water both are a bad conductor of heat, this top layer of ice insulates the rest of the water body from the cold of the winter,thereby protecting all the life in the water body.