How to protect water

Water is very important to us. We can’t live without it . But some people don’t really care about this . They waste a lot of water, pour dirty water and throw rubbish into rivers or lakes. As a result, many rivers and lakes are polluted, and there is less and less water for us to drink. So we must do something to protect the water reource. We should stop the pollution and find ways to reuse water. If everyone can do so , we are sure to save a lot of water.