Question

The temperature of water at the bottom of a waterfall is higher than that ofthe water at the top, because

• A. falling water absorbs heat from the sun
• B. kinetic energy of the falling water is converted into heat
• C. water at the bottom has greater potential energy
• D. the rocks on the river bed give out heat

Answer 1

The correct option is B kinetic energy of the falling water is converted into heat

When water falls from top of a waterfall, it has a force of friction being exerted on it due to which some of its kinetic energy gets converted into heat energy.

Thus the temperature of water at the bottom of waterfall is higher than that at the top.