What is a tree line?

What is tree line?

What are trees?

What are trees? Give two examples?

What kinds of trees are observed in the Dooars and Terai forests?

What is Timberline/ Tree line?

What is known as tree line of a mountain?

Following is the pictrograph of different kinds of trees in a garden.. What is the difference between the number of mango trees and the number of banana trees?