It can start like '' who are we? humans not animals only for our use we cut trees and just throw out or use them and give a little importance of trees and how would trees feel because they are also living things they feel to but they do not respond to us and how trees are useful they take in carbon dioxide and give us oxygen instead of trees if it would be a human who would do this much for us gives fruit too so protect your respect and save our trees for your children and future generation or one day the world would end only because of one mistake we are making now !! 
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Excellent answer...Thank you :)
a loads welcome