Pollution

 

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p. 1

pollution

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p. 2

air pollution when the air is polluted from the smog:harmful gas car moto plain ecc

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p. 3

water pollution when the water is pulluted from the tossic rubbish or oil.

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ground pollution when the ground is polluted from the urban-industrial dump.

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p. 5

sound pollution whe the air is polluted by the sond plain ecc

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