paragraph on
flowers,saving trees,travelling,my classroom,a dream,a cricket match
choose one of them
and write a pargraph for class 7
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Answer:
here is your answer
Save Trees
If there are no trees life on earth cannot be sustained. Trees provide us what we vitally need to stay alive. They provide us with oxygen. If we cannot breathe in oxygen we will perish.
Trees produce oxygen as the result of the process of photosynthesis that takes place in them. In this process, carbon dioxide and sunlight are used up and oxygen is produced that is released into the air. There is thus a constant supply of oxygen from trees during daylight hours when photosynthesis occurs in trees.
It is this process that also keeps the levels of carbon dioxide in the air at low levels. If trees are cut off carbon dioxide levels go up. Carbon Dioxide being a greenhouse gas, the result is a warming up of the atmosphere. This phenomenon is known as global warming. It results in climate change that is affecting people around the world. The easiest way to combat global warming is to save trees and also grow more trees.
Trees also help us by providing us food. Not only does man, but all herbivorous creatures too, depend on trees for their sustenance. By cutting off trees we harm ourselves. It is therefore important to save trees.