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Trees are our best friends. Right from our childhood we r taught about different uses of trees. We all are aware of the uses of trees. It gives us food,shelter,oxygen to breath, helps in many natural phenomenons etc. But in greed and selfishness man has started deforestation for the development of human settlements. Forests are getting cleared. Soil is becoming barren. Trees take in carbon dioxide and give oxygen. Due to the decreasing number of trees carbon dioxide in air is getting increased and temperature on earth is rising. Greenery is getting vanished. The decreasing number of trees is effecting the ozone layer. Today, afforestation is must to prevent global warming. That's a way for rain to occur timely. We can prevent the rising pollution abd temperature through afforestation. So let's plant trees and save trees and maintain the green cover of our country.