Why do the people plant trees? It is very easy. Because they want to protect the environment. There are many people who want to earn the money form only cutting down trees. So more and more trees are cut by them.

But kind people want to protect the environment and make the air clean. So they plant trees as many as they can.

All these actions show that people should pay more attention to the environment. We want to make it better, dont we? So we must plant more trees to protect the environment.

So, everyone, if you want to make the air clean, please try your best to protect the environment and plant more trees.