there is no birds sing in the forest,because there is no more forset.

　　there is also no more fish in the river, because the water is full of rubbish and dust. the pollution is so terrible on earth that most of the people goes to other plants to live. someone live on earth because they want to see the miracle happens again.

　　they want to see the earth become green and health. the goverment allows them to do everything on earth to get their lovely plant back again. they will succees.