MCQ Questions for Class 8 Science Chapter 18 Pollution of Air and Water with Answers

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All questions answers in the last paragraph

Q1. Better fuel is:

(A) Peton
(B) Diesel
(C) Coal

Q2. The phenomenon of marble cancer is due to

(A) soil particles
(B) fog
(C) CFCs
(D) acid rain

Q3. Which element is present in the exhaust of automobiles?

(A) Lead
(B) Calcium
(C) Chromium
(D) Magnesium

Q4. The following gas is not an air pollutant:

(A) Carbon dioxide
(B) Oxides of nitrogen
(C) Sulphur dioxide
(D) Oxygen

Q5. The greenhouse effect gas is:

(A) CO2
(B) Methane
(D) All of these

Q6. The solid or liquid particles dispersed in the air are called

(A) oxides
(B) acids
(C) hydrocarbons
(D) aerosols

Q7. What radiations are absorbed by CO2?

(A) Ultrared radiations
(B) Infrared radiations
(C) Ultraviolet radiations
(D) None of these

Q8. The following gas forms acid rain:

(A) Carbandioxide
(B) Ozone
(C) Sulphur dioxide
(D) Carbon monoxide

Q9. The gas depleting ozone layer is:

(A) Nitrogen.
(B) Oxygen
(D) Carbon dioxide

Q10. The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is

(A) air pollution
(B) soil pollution
(C) water pollution
(D) noise pollution

Q11. In which year Ganga Action Plan was launched?

(A) 1980
(B) 1984
(C) 1982
(D) 1985

Q12. Which of the following Is not a pollutant unless present in excess:

(A) Nitrogen dioxide
(B) Carbon dioxide
(C) Carbon monoxide
(D) Sulphur dioxide

Q13. The reason for greenhouse effect is:

(A) Decrease in quantity of CO2 in atmosphere
(B) Increase in quantity of CO2 in atmosphere
(C) Decrease in quantity of oxygen in atmosphere
(D) Increase in quantity of oxygen in atmosphere

Q14. The major causes of air pollution include

(A) burning of coal and petroleum
(B) afforestation
(C) deforestation
(D) recycling of paper

Q15. Bhopal tragedy was caused due to

(A) air pollution
(B) emission of poisonous gas
(C) water pollution
(D) leakage of poisonous gas

We hope the given NCERT MCQ Questions for Class 8 Science PDF Free Download solution will definitely help you to achieve perfect score. If you have any queries related to CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop your questions below and will get back to you in no time.

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