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SAI International School
Subject - Chemistry
Class - VIII

Topic – Pollution of Air and Water
Practice Worksheet

Q. No. Questions Skill Marks
1. Which one of the following is not a source of air pollution? U 1
a. Automobile exhaust.
b. Burning of firewood.
c. Windmill.
d. Power plant.
2. If you want to contribute to reducing air pollution. Which vehicle U 1
should you use for going to school?
a. Car.
b. School bus.
c. Auto rickshaw.
d. Scooter.
3. The type of pollution which is likely to affect Taj Mahal in Agra . 1
to a greater extent is
a. Air pollution.
b. Water pollution.
c. Soil pollution.
d. Noise pollution.
4. Choose the correct option from the following: U + A 1
(a) If both Assertion and Reason are correct and Reason is the
correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not
the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct.
(e) If Assertion & Reason both are incorrect.
Assertion (A): Dust particles cause air pollution.
Reason (R): Dust particles can cause irritation of eyes and
nose.
5. Assertion (A): CFC depletes the ozone layer. U + A 1
Reason (R): CFC is present in perfumes.
6. What is air pollution? U 1
7. What do you mean by air pollutants? U 1
8. Mention three effects of air pollution. R + A 3
9. Write down three causes of air pollution. U + R 2 + 1 =
3
10. Write down five ways of how air pollution can be controlled. R + U 2 + 3 = 5
+ A

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