Class 7 Geography e-Book's MCQs - Complete
Class 7 Geography: Air and Water Pollution MCQs App & e-Book - 196
Apps:
MCQ: 196
The addition of harmful substances that has bad effects on environment and living things is classified as
- allotrophication
- eutrophication
- atmospheric pressure
- pollution
d
Class 7 Geography App & e-Book Tests PDF Download
Air and Water Pollution Learning App: Free Download Android & iOS Apps
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7th Grade Geography MCQs eBook Download
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