Protecting the environment is becoming more and more important to humans . It’s our duty to take care of the nature around us . Animals and plants are our best friends ., and we should share the world with them . We shouldn’t kill wild animals , and we must protect forests because they are animals’ home . We must plant more trees and grass , they can make the world greener . The more beautiful the world is, the happier lives we will have . Let’s do our best to make the world beautiful.