Why do the trees in the forest grow very fast and very high because all collide quickly to get sunlight and rainfall. There are even trees that are capable of being very tall and big. The giant trees look like poles in the forest.
This world is increasingly short of trees and many trees are being cut down for human purposes. The more trees are reduced, the more pollution and other consequences are more severe due to human actions which are often natural.
@bos-giok