Categories of Air Pollutants

Q.

Smog is a mixture of

1. Smoke, and Fog

2. Dust particles and water droplets

3. Smoke and dust particles

4. Fog and water droplets

Q. Which of the following can be classified as a natural source of air pollution?

1. Industries
2. Volcanoes
3. Burning
4. Explosions

Q.

A pollutant is any substance, chemical or other factors that:

1. Speeds up geochemical cycle

2. Changes the natural balance of our environment

3. Enhances plant life

4. Enhances the animal life at the cost of plants

Q.

What is the term given to wastes which react very quickly when exposed to air or water?

1. Radioactive wastes

2. Biochemical wastes

3. Explosive wastes

4. Corrosive wastes

Q. Sulphur dioxide is released by

1. Rubber industry
2. Mining industry
3. Power stations
4. Heavy automobiles

Q.

Photochemical smog is formed :

1. When Ultraviolet light from the sun reacts with carbon dioxide in the atmosphere

2. All of the above

3. When Ultraviolet light from the sun reacts with nitrogen oxide in the atmosphere

4. When Ultraviolet light from the sun reacts with carbon monoxide in the atmosphere

Q.

Recall where you have seen this sign before?

1. Radioactive waste

2. Skeleton waste

3. Biodegradable waste

4. Toxic waste

Q.

The burning of household garbage generates

1. Carbon dioxide

2. Compost

3. manure

4. Oxygen

Q.

Give one word or a phrase for the following.

Smoke mixed with fog.

Q. Correct the underlined part of the sentence, if needed.
Pollution and degradation of the environment is, according to the commission's report, a matter of universal concern

1. is, according to the commission's report, a matter of universal concern
2. is, according to the report by the commission, a matter of universal concern
3. is, according to the report of the commission, matters of universal concern
4. are, according to the commission's report, universally a matter of concern
5. are, according to the commission's report, a matter of universal concern

Q. With reference to the given flowchart choose the correct option.

1. (i) Hydrophobic (ii) Sulphuric acid (iii) Sulphate (iv) Nitrogen sulphate
2. (i) Hygroscopic (ii) Sulphuric acid (iii) Sulphurous aerosol acid (iv) Acid rain
3. (i) Ionic (ii) Super sulphur oxide (iii) Sulphonyl hydroxide (iv) Sulphonyl superoxide
4. (i) Hygroscopic (ii) Sulphur solution (iii) Sulphuric acid (iv) Acid rain

Q.

Which of the following sources release particulate pollutants?

1. mining

2. stone drilling

3. wearing of rubber tires of motor vehicles

4. All of the above