1. Paula is learning about afforestation and reforestation. She understands that planting trees helps to reduce CO2 levels. How does afforestation help reduce CO2?
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Chapter 11: Environmental Chemistry-Air
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2. Which of the following helps reduce air pollution?
3. Carbon monoxide is mainly produced by:
4. Global warming is mainly caused by increase in:
5. Ahmed is studying the composition of the atmosphere in his chemistry class. He learns that the atmosphere is made up of several gases. Which gas is the most abundant in the Earth's atmosphere?
6. Hina is learning about sources of air pollution. She knows that pollution can come from natural sources. Which of the following is a natural source of air pollution?
7. Global warming leads to:
8. Qasim is studying sustainable land use. He learns that sustainable land use is important for reducing environmental problems. Which of the following is an example of sustainable land use?
9. Which gas causes choking at high concentration?
10. Which layer of atmosphere contains most of the air mass?