Answer :
because tree's give oxygen, oxygen is the air, air is what helps us breath in and out of our lungs so we stay alive. Rain forests also home many different types of animals and help us with the climate and other things...
rain forest so important because.... By absorbing carbon dioxide, rainforests help to reduce the effects of worldwide climate change. In addition to the important role rainforests play in Earth's climate, they also are an important home to about half of the species of plants and wildlife on the planet.