read and complete using car recycle reusable cutting down plastic bottles natural resources trees greener helth problems oxygen 1.If we__________waste paper,we will save a lot of trees. 2.If we plan more trees,we will have more trees,we will have more__________ to breathe. 3.__________are becoming exhausted,so we should save them. 4.We can recycle things like__________ and cans protect the envirronment. 5.If we stop_____the trees,we can prevent floods and other natural disasters. 6.If we breath polluted air,we will have______