Green Gyan

Trees are the tallest of all plants in the world and they were present on the earth much before human beings appeared.

Trees grow on mountains, along seashores and in hot deserts. We find them growing along the edges of roads, in fields and in our homes and gardens. All plants and trees are necessary for life on earth as they provide oxygen that living beings need to survive.

Most plants have a green colouring matter in their leaves called chlorophyll. During the day, when sunlight falls on the leaves, the leaves prepare food for the plants by a process called photosynthesis. They do this with the help of the water absorbed by the roots, the carbon dioxide from the air that enters the leaves through tiny pores on the surface of the leaf, and sunlight. Oxygen is let out into the air as a result of photosynthesis.

There are thousands of different types of trees but the ones that give us delicious fruit are the best of them all. All trees bear fruit. However, all fruits are not edible. Some may even be poisonous!

But trees are our special friends. They give us shade on a hot day; they provide us with food, timber and medicines. When trees grow over a large area, they form forests. Forests affect the climate of a place, prevent soil erosion and provide a habitat for a variety of animals.

We must look after trees and plant trees if we can, so that we have a healthy environment.