We must plant trees, not cut them. Cutting trees causes land slide and pollution. Trees are cut down and when it rains very heavily, trees fall down by cliffs causing landslides. Cutting tress also causes pollution. Trees breathe in carbon dioxide and breathe out oxygen which we breathe in. Which means we exchange gases but if we cut trees, the carbon dioxide will grow and we will not have much oxygen. So, we should plant more trees. If you cut one tree and should plant thousands of trees. We plant saplings, plants in our balcony.  Please plant trees and save earth.