1.Because the plants are helping us breath
2.Because God gave us a chance to live,but we would ruin it if we would not protect nature
3.Because plants have life too,and they need protection from us
4.The animals are eating plants,and we eat animals AND plants but without them we could not have any food at all
5.When the weather is really bad, the trees help us from getting taken by the water and die
scuze....de aici nu mi-au mai venit idei
