Water Pollution|Pollutants|Causes of Water Pollutions|Industrial,House, Agricultural Animal Waste 

Water Pollution|Pollutants|Causes of Water Pollutions|Industrial,House, Agricultural Animal Waste
This Pashto lecture I will Though you from chemistry of Class 10th that is water pollution, water pollutants, Industrial waste, house waste, agriculture waste, animal waste in details Kpk board Students.
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