Water i very important to the human being.But now many river and lake are polluted.
And what hall we do ???
We can do like thee thing:
Firt we mut protect the factory form pouring wate water into the river
Second we hould top people from throwing litter into the river.many kind of litter may pollute the envirenment.
Finally we can tell the viitor how important the water i.
After doing thee thing,I think water will become clearer ooner or later.