global warming, ozone layer depletion, air pollution, , Pollution, Harmful, Polluted, , Factory waste, air pollution, Pollution, , Household waste, Harmful, Factory waste, , Rubbish, Pollution, ozone layer , , Factory waste, Power station , water pollution, , Rubbish, Factory waste, Air pollution, , Toxic fumes, Rubbish, Factory waste.

Environmental Problems

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