Recently red tide which cuase by over-industrialize in chuangzhou becomes heavier and heavier.It gives a warning to us and requires us to protect the environment.
　　As we know , in the morden day,the econmy development gose fast.It also brings us a lot of pollutions which make our lives unsafe.Some months the seawater becomes red. It's the red tide that kill many kinds of sea animals,especially the fish. The chemical rain is one of reasons cause the red tide. In recent years in Guang zhou all of the rain is chemical rain which is about 5 PH.when we have a rainning day .The water of the sea and the river that near Guang Zhou become redder. So terrible is the pollution that we can't imagiad .
　　 Econmy development gives us a lot of good things,meanwhile gives us a lot of pollutions too.