1. Waseem is studying water scarcity in Pakistan. He knows that population growth is a contributing factor. How does population growth lead to water scarcity?
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Chapter 11: Environmental Chemistry-Air + Ch 12
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2. Which gas is NOT a greenhouse gas?
3. Which of the following is a biological water pollutant?
4. Julia is studying waterborne diseases. She knows that dysentery is a waterborne disease. What is a symptom of dysentery?
5. Lara is learning about chlorination of water. She knows that chlorine is added to kill harmful microorganisms. What is the purpose of chlorination?
6. Which of the following is a natural source of air pollution?
7. George is studying strategies to reduce environmental problems. He learns that moving to a low-carbon economy is important. What is a low-carbon economy?
8. Which metal is commonly found as a toxic water pollutant?
9. Ethan is studying the effects of acid rain. He learns that acid rain can damage aquatic ecosystems. How does acid rain affect aquatic life?
10. Which health problem is caused by increased UV radiation?
11. The approximate percentage of oxygen in air is:
12. Which activity increases water pollution?
13. Which parameter indicates the clarity of water?
14. Mohamed is studying catalytic converters. He learns that catalytic converters are used in vehicles to reduce pollution. What do catalytic converters do?
15. Oliver is studying water pollution. He knows that household wastes can pollute water. Which of the following is a household waste that can pollute water?
16. Bongani is learning about indoor pollution. He understands that indoor air can be more polluted than outdoor air. Which of the following is a source of indoor air pollution?
17. Tina is learning about strategies to solve acid rain. She understands that acid rain can be mitigated by reducing emissions. Which of the following is a strategy to reduce acid rain?
18. Paula is studying acid rain. She learns that acid rain can corrode metals. Which metal is particularly susceptible to corrosion by acid rain?
19. Which of the following is a safe drinking water indicator?
20. Excess fertilizers in water bodies cause:
21. Victor is studying the effects of fertilizers on water. He knows that nitrates from fertilizers can cause health problems. What is a health risk associated with high nitrate levels in water?
22. Fatima is studying the benefits of natural substances found in water. She knows that some minerals are beneficial for health. Which of the following is a benefit of natural substances in water?
23. Julia is learning about global warming. She understands that global warming is caused by the greenhouse effect. Which gas is the main contributor to the greenhouse effect?
24. Which gas is released during respiration?
25. David is studying the treatment of domestic water. He knows that raw water treatment involves several steps. What is the first step in the treatment of raw water?
26. Chloe is studying sulfur oxides. She learns that sulfur dioxide (SO2) is a major air pollutant. What is the main source of sulfur dioxide emissions?
27. Temporary hardness of water is caused by:
28. Dissolved oxygen in water is essential for:
29. Which of the following causes depletion of ozone layer?
30. Hard water does not form lather easily with: