看看这篇文章有没有语法错误

看看这篇文章有没有语法错误
The protection of the Earth is very important
Environmental problems over the world are becoming more and more serious..Cars have made the air unhealthy .Trees on the hills have been cut down.Waste water is being poured continuously into rivers.
The earth is our home and we have the duty to take care of it.Now,more and more people have realized these problems.Laws have been passed to stop pollution.
What should we do?
We should plant more trees and flowers around us.Whenever we see litter on the ground,we should pick it up and put it into rubbish bins.We shouldn’t draw on public walls.I believe that as long as we do so,our earth will be more beauty
Let try our best to do some things for our beautiful Earth