We are living on the earth.The earth is very beautiful and it has lots of rivers and mountains.The longest river in the world is the Nile River.It is more than six thousand kilometre.Of course,there is the tallest mountain in the southwest of China.It is called Mount Qomolangma.And it is growing every year.On the earth there is 71 percent water and 29 percent land.The people around the world live on 7 land.Also ,the waterfalls are wonderful,I love them so much.The world has more and more problem now.We have to pretect it from our simplest activities life.