Write an English composition about protecting forests.

Forests are very important to human beings. They are the lungs of the earth. Forests can purify the air, regulate the climate, and provide us with wood, rubber, fruits and herbs. At the same time, it provides more opportunities for people to enjoy nature. The forest is home to many animals, and thousands of animals live there. But now the forest area is getting smaller and smaller, and the number of many animals is decreasing sharply.