We should not destroy plants. It releases oxygen for us which is important for us to breathe for living. They prevent floods and certain types of erosions. They do not harm our ozone layer or atmosphere. Then why are we destroying them? We should do reforestation more than deforestation. They provide us food, shelter and shade. The plant "Cactus" also provides us clean water. Imagine living on a world without plants and trees. It will be uncomfortable. This tells that we should not destroy plants and trees nor do deforestation.