Explanation:

Trees intakes Carbon dioxide from air and breathe out fresh oxygen for our life support. This cycle is made by nature to sustain other living beings. Further, the Carbon dioxide breathed in by the trees is ONE of the greenhouse gases. This and other greenhouse gases, when released into the ATMOSPHERE form a layer and trap the heat from the sun. They result in an increase in the atmospheric temperature. This causes global warming. So planting more trees will clean the air will reduce the global warming effect.

Ecosystem

Trees contribute to a rich healthy ecosystem. Animals, INSECTS, birds, and fungi make their home in the trees and make a diverse ecosystem. This balanced environment, in turn, contributes to the betterment of HUMAN beings. Trees produce their own food and are found at the bottom of the food chain. They produce their own food through a process called photosynthesis and contribute significantly to the whole ecosystem. Further, trees are a rich source of MEDICINES that are used to heal our diseases in a natural way as done Ayurveda.