We should save trees because they are very useful they give us oxygen , medicine etc. There is a saying what you do , is what you get means if we do bad to others we will get bad but if we do good to others we get good things . We can say that day by day the numbers of trees are decreasing because we are cutting them . Some people do it illegally for red wood that's why the number of red trees are decreasing but if we ask one why that Why are you cutting trees ? and stop them from doing it maybe we could save trees.☺️