Pollution of Air and Water Worksheet-3

Pollution of Air and Water Worksheet-3

1. Honorable Supreme Court of India issued notices to the state governments in India in the year 2005 to conserve the forest reserves and the environment for a sustainable development. What does Conservation of  the environment mean?

(a) not destroying natural resources

(b) not lowering the quality of the environment

(c) changing natural resources from its original state

(d) preserving the condition of the nature that has been

2. India is working with Japan, by using the Japanese technology to clean ‘The Ganga’ river in the state of Uttar Pradesh. What is the main source of water pollution in Uttar Pradesh?

(a) Discharge of untreated sewage

(b) Bathing

(c) Discharge of industrial waste

(d) Both Discharge of untreated sewage and Discharge of industrial waste

3. The 'green house effect' refers to the ________

(a) Building up of pollution in the atmosphere

(b) Gradual warming of the Earth's atmosphere

(c) Hole in the ozone layer

(d) Increase in human population on Earth.

4. The pie chart shows the composition of air. Identify the gases W, X, Y and Z.

(a) W-Nitrogen, X-Rare gases, Y-Oxygen

(b) W-Carbon, X-Oxygen, Y-Rare gases

(c) W-Nitrogen, X-Oxygen, Y-Rare gases

(d) W-Rare gases, X-Hydrogen, Y-Oxygen

5. Which air pollutant is wrongly matched with the effect?

(a) Dust - reduces photosynthesis in green plants

(b) Carbon monoxide - reduces oxygen in the blood

(c) Chlorofluorocarbon - damages nerves and tissues

(d) Nicotine - hardens and narrows blood vessels

6. Which of the following does NOT cause air pollution?

(a) Establishing forest reserves

(b) Using pesticides in farms

(c) Developing housing estates

(d) Quarrying for limestone

7. The following diseases are related to smoking except:

(a) emphysema                             (b) measles

(c) high blood pressure               (d) cancer of the lungs

8. Which of the following is NOT due to air pollution?

(a) Thinning of the ozone layer

(b) Increase in the number of diabetic patients

(c) Destruction of habitats

(d) Global warming

9. Ozone consists of:

(a) three carbon atoms

(b) three oxygen atoms

(c) one carbon atom and two oxygen atoms

(d) one oxygen atom and two hydrogen atoms

10. The gas associated with the greenhouse effect is:

(a) carbon dioxide                        (b) oxygen

(c) nitrogen dioxide                     (d) sulphur dioxide

Answer Key:

(1)-(a); (2)-(d); (3)-(b); (4)-(c); (5)-(c); (6)-(a); (7)-(b); (8)-(b); (9)-(b); (10)-(a)