Global MCQ Practice

šŸŒ Total MCQ
šŸ  Homepage šŸ“˜ Download PDF Books šŸ“• Premium PDF Books

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

Quiz Instructions

Select an option to see the correct answer instantly.

1. EUTROPHICATION IS CAUSED DUE TO PRESENCE OF EXCESSIVE
2. THE PHENOMENON OF MARBLE CANCERIS DUE TO
3. CFC is also called .....
4. Drinking water has which of the following properties?
5. It is important to have clean water to .....
6. Which is the gas produced from incomplete burning of fuels such as petrol and diesel?
7. What can cause heart strores?
8. Water which is purified and fit for drinking is known as ..... water.
9. Many ..... problems are caused by air pollution
10. What are the main sources of water pollution?
11. The phenomenon in which acid rain corrodes the marble of the monument is called .....
12. The phenomena of Marble cancer is due to
13. The combination of smoke and fog is called Smog.
14. A commonly use chemical method for purifying water is
15. ..... is the process of removing the salt from ocean water.
16. Carbon monoxide in vehicle exhaust causes
17. SO2, CO2and Nitrogen oxides are polluting gases.
18. Smog is derived from which words?
19. Which of the following is an activity that will reduce water pollution?
20. Other kinds of pollutants are chlorofluorocarbons (CFCs) which are used in refrigerators, air conditioners and aerosol sprays
21. Which of the following is the main source of carbon monoxide (CO)?
22. Which of the following is a non-biodegradable pollutant?
23. Which of these is the largest cause of air pollution?
24. Greenhouse gases includes
25. Process of adding Chlorine to kill bacteria in water?
šŸ  Back to Homepage šŸ“˜ Download PDF Books šŸ“• Premium PDF Books