问题详情

What causes the central problem that so much water is wasted mainly by farmers？

A．Because farmers can use water for agriculture free.

B．Because agriculture uses 75% of the world"s water.

C．Because most farmers are not aware of water shortage.

D．Because too many thirsty crops are grown in dry countries.

请帮忙给出正确答案和分析，谢谢！