A world below the trees
1.You are walking near the edge of a tropical rain forest.The jungle plants are so thick,so close together,that you must slowly push your way through.Then the jungle ends,and you enter the rain forest itself.Here the distance,or space,between the plants is greater.
2.A tropical rain forest is made up of different levels.The top level is a ceiling of treetops.Measured from the ground up,the treetops reach 100 to 200 feet in height.The middle level is made up of shorter trees and bushes.Here,many animals and insects live.The number of different kinds of insects alone is well over one thousand.Plants at the lowest level,the forest floor,are about a meter high.
3.Jungles often grow at the adge of rain forest.But if you compare the two ,you see that they are not alike.Many plants crowd the sunny jungle.Plants are not as numerous on the rain forest floor since it is shaded by the treetops.
4.Today,rain forests are changing.people cut down trees and use the land to grow crops.As people increase their use of the land,rain forests get smaller.
5.We must try to protect these rain forests.Not only are they home to many animals and plants,but they also help supply the earth with oxygen.Rain forests give up clean air to breathe.
Reference: reading for general English dr.farideh pourgive