summary of chapter pollution of class 9
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Pollution is very common nowadays...
It's really a hell for human being but what the true thing that the human only done this.....
pollution has many effect now most of the diseases are caused by pollution like asthma, breathing prblm etc....
thus,we should try to reduce this problem
It's really a hell for human being but what the true thing that the human only done this.....
pollution has many effect now most of the diseases are caused by pollution like asthma, breathing prblm etc....
thus,we should try to reduce this problem
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