Please someone explain the lesson THE RIVER
Class 8th
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As you know that earth is the only planet on which life is present but due to some of our activities we are creating pollution on earth. We are damaging our earth. So, in this chapter we will study that how air and water pollution is going to damage our earth and our environment.
Air
As we know that our earth is surrounded by an envelope of gases which is known as the atmosphere. This combination of various gases present in our atmosphere is known as air.
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