Pollution of Air and Water Class 8 Science Chapter 18 MCQ Question Answer NCERT Solution

Class 8 Science Chapter 18 MCQ Question Answer of Pollution of Air and Water NCERT Solution in Hindi. NCERT Class 8 Science Question Answer and Important Question Answer, Textual Question answer also Available for Various Board Students like HBSE, CBSE, UP board, Mp Board, RBSE and some other State Boards.

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NCERT Solution for Class 8 Science Chapter 18 Pollution of Air and Water MCQ Question Answer.

Pollution of Air and Water Class 8 MCQ Question Answer

1.  What is the Percentage of Nitrogen in air?
(a) 76%
(b) 77%
(c) 78%
(d) 79%

Answer

Ans. (c) 78%


2.  What is the Percentage of Oxygen in air?
(a) 21%
(b) 22%
(c) 23%
(d) 24%

Answer

Ans. (a) 21%


3. What is the Percentage of Water on Earth?
(a) 70%
(b) 71%
(c) 73%
(d) 74%

Answer

Ans. (b) 71%


4. What is the full form of CFC?
(a) Chlorofluorocarbon
(b) Carbonfluorochloro
(c) chlorofluorochlorine
(d) None

Answer

Ans. (a) Chlorofluorocarbons


5. What is the full form of CNG?
(a) Common Natural Gas
(b) Compressed Natural Gas
(c) Common New Gas
(d) Commercial Natural Gas

Answer

Ans. (b) Compressed Natural Gas


6. What is the full form of LPG?
(a) Liquid Petroleum Gas
(b) Local Petroleum Gas
(c) Lubricant Petroleum Gas
(d) Liquid Purified Gas

Answer

Ans. (a) Liquid Petroleum Gas


7. Ganga Action Plan was launched in
(a) 1965
(b) 1975
(c) 1985
(d) 1995

Answer

Ans. (c) 1985


8. What is the full form of NMCG?
(a) National Mission for Clean Ganga
(b) National Ministry for Clear Ganga
(c) National Month for Clean Ganga
(d) National Ministry for Clear Ganga

Answer

Ans. (a) National Mission for Clean Ganga


9. Which of the following is not a greenhouse gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Methane
(d) Nitrogen

Answer

Ans. (d) Nitrogen


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