joanne-saving the rainforests

why must we save the rainforests?what is the method of saving the rainforests?we must save the rainforests because many trees are cut down and that sometimes will caused water pollution and iff many trees are being cut down and we do not stop it,there will be less trees and less oxygen for us.If all the trees are cut down,we will soon die.the method of saving trees is to save paper as trees are being cut down to use to make paper.we can save paper by using both sides of paper to write instead of 1 side.