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Class 8 Science Chapter 18 Pollution Of Air And Water Quiz 9 (25 MCQs)

Quiz Instructions

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1. The substance that pollute the natural substance is called
2. Which is the less polluting fuel /
3. GREEN HOUSE GASES ARE
4. Nitrogen dioxide reacts with water to form nitric acid
5. What is the full form of CFCs?
6. THE PETROLEUM PRODUCT WHICH IS NOT USED AS A FUEL IS:
7. Which of the following air pollutant is capable of preventing photosynthesis in plants
8. What is the percentage of nitrogen gas?
9. What should be used instead of air conditioners in homes and offices .....
10. Integrating industrial areas and residential areas is beneficial for both.
11. The major causes of air pollution include
12. A chemical method used for purifying water is:
13. Which of the following statement about ozone is correct
14. Identify a cleaner vehicle fuel from the given options.
15. PLANT MAHAOTSAV IS:-
16. Which of the following techniques of irrigation should be used to save water?
17. 14 Riya wants to contribute in reducing air pollution Which vehicle should she use for going to school
18. Which of the following is a natural source of air pollution?
19. ..... is a precious natural resource.
20. We should not dispose ..... in sinks
21. Bacteria in the water feed on the chemicals and when it dies it serves as food for the algae. thus oxygen level decreases. is this true or false
22. Trees help in reducing Air and Noise pollution. Lakhs of trees are planted in the month of July every year This occasion is called
23. Which of the following is not a consequence of global warming?
24. Oil forms a layer on the water surface and prevents ..... from entering the water.
25. In a(n) ..... , a layer of warm air presents rising air from escaping, and traps pollutants near the Earth's surface.
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