Trees are important in our daily lives. They can produce oxygen for us to breathe and take in h gases. They are also major fighters a air pollution. So it is necessary for us to protect tees. How can we protect them?I'd like to give you some a . Firstly,we can plant more trees to keep the environment green. Secondly,we should use both sides of paper and also e our friends to do so. F ,we can use less throwaway chopsticks. Let's start out small and make the Earth more beautiful.