сочинение на британском тема задачи загрязнения земли

a скок предложений либо неограничено?

6-8)

In our planet a lot of environment ptoblems one of them are: air pollution,water pollution and earth pollution. I'm going to tell you about water pollution. Our planet consist of water about 80%. But about 5% is fresh water. many lakes and rivers pollution and animals and birds leave his homes.
Secondly i'm going tell about air pollution. It is very dangerous problem, because if wir doesn't have come oxygen we will die.