Let's protect the water from pollution because we can't live without water. The water is really important to us all.
That was before, but now we can never see such clean rivers.
My grandmother had said, when she was very little, the water in the river was extremely clean. She often swam in the river with her friends.
Let’s have a look. The water in the river is getting dirtier and dirtier. Most of fish in the water have died, and we can't swim in the water. Even the water in the sea has faced a lot of pollution.
Everybody knows that there are a lot of problems of water pollution on the earth. Yes, water pollution is increasing.