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Created by
Sudheer_Goud9
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Biology
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Air poolution
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Age 9-11
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level: 9
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English
Author's Instructions
Think about what you have learned about air pollution. Do you think that most air pollution comes from natural sources or human activities?
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Created by
Sudheer_Goud9
-
Biology
-
Air poolution
-
Age 9-11
-
level: 9
-
English
Author's Instructions
Think about what you have learned about air pollution. Do you think that most air pollution comes from natural sources or human activities?