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