Question

1. What causes pollution?

(a) Cars
(b) Animals
(c) Factories
(d) A and C only

2. Which of the following pollutants can damage lungs?

(a) Ozone
(b) Smog
(c) Carbon Dioxide
(d) Nitrogen

3. Which of the following gases does an automobile produce?

(a) Carbon Dioxide
(b) Nitrogen
(c) Helium
(d)Carbon Monoxide

4. This type of pollutant causes acidification of rivers, lakes and also damages tree foliage and degrades soil quality.

(a) Ozone layer
(b) Acid rain
(c) Oil
(d) None of the above

5. When burning fuel for energy, small particles are thrown into the air that are visible in the form of smoke. It is called this type of pollution.

(a) Black carbon pollution
(b) Indoor pollution
(c) Outdoor pollution
(d) Air pollution

6. Which of the following substances is harmful to water?

(a) Carbon Dioxide
(b) Salt
(c) Hydrogen
(d) Oil

7. Which of the following is ozone not used for?

(a) Bleach
(b) Softening clothes
(c) Sterilizing water
(d) All of the above

8. Ozone pollution is worst at what time of day?

(a) Afternoon
(b) Early evening
(c) Nighttime
(d) A and B only

9. In the last several years, the level of many air pollutants has

(a) Increased
(b) Decreased
(c) Stayed the same
(d) Hasn`t changed

10. "Good ozone" is found in what layer of the atmosphere?

(a) Troposhphere
(b) Mesosphere
(c) Stratosphere
(d) None of the above​

Answer 1

Answer:

1. factories
2. ozone
3. helium
4. acid rain
5. black carbon polution

10) troposplere

Answer 2

Answer:

1.a and c only 2.smog 3.helium 4.acid rain 5.indoor pollution 6.carbon dioxide 7.sterilizing water 8.afternoon 9.increased 10.stratosphere