According to the third paragraph, which is true about water？A．There is no such thing as wa

According to the third paragraph, which is true about water？

A．There is no such thing as water shortage in the world at all.

B．It can be recycled in the form. of rain, snow or evaporation.

C．Less than a tenth of water is extracted for human use each year.

D．Only what falls as rain and snow can be made full use of.

请帮忙给出正确答案和分析，谢谢！