Question 31 : What is the composition of photochemical smog?
1. Nitrogen oxides, ketones and ozone
2. VOCs and hydrocarbons
3. Peroxy-acetyl-nitrate, peroxy-benzoyl-nitrate, peroxy fornyl-nitrate
4. All of the mentioned
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Question 32 : Air-borne particulates are classified as group 1 carcinogens.
1. True
2. False
3.
4.
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Question 33 : Which of the following gases are main contributors to acid rain?
1. Carbon dioxide and carbon monoxide
2. Sulphur dioxide and carbon dioxide
3. Sulphur dioxide and nitrogen dioxide
4. Sulphur dioxide and nitrous oxide
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Question 34 : What type of colloid is an aerosol?
1. Solid in gas
2. Gas in solid or fluid
3. Fluid in gas
4. Fluid or solid in gas
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