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| China and India have really bad air pollutin . China is the most polluted city in the world ! | |
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| WOW ! what are some effects and causes of their air polluiton ? have they did anything to improve their pollution problems? | |
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| China and India have really bad air pollutin . China is the most polluted city in the world ! | |
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| WOW ! what are some effects and causes of their air polluiton ? have they did anything to improve their pollution problems? | |
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| China and India have really bad air pollutin . China is the most polluted city in the world ! | |
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| WOW ! what are some effects and causes of their air polluiton ? have they did anything to improve their pollution problems? | |
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