What kind of pollution is it?, Water pollution, Land Pollution, Air Pollution, Noise Pollution, What is Pollution?, It's anything that makes the earth dirty., It's a sign in public places., It's a green area., It's something clean in public places., What kind of pollution is it?, Water Pollution, Air Pollution, Noise Pollution, Land Pollution, What kind of pollution is it?, Land Pollution, Noise Pollution, Air Pollution, Water Pollution, What kind of pollution is it?, Water Pollution, Land Pollution, Noise Pollution, Air Pollution

Environmental Issues-Pollution

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