Class 10 Chemistry MCQs - Chapter 6
Environmental Chemistry I Atmosphere Quiz Questions & Answers PDF Download - 11
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Environmental Chemistry I Atmosphere Exam Questions and Answers PDF Download: Test 11
Which of the following makes up most of the air?
- nitrogen
- oxygen
- carbon dioxide
- helium
Which of the following is true about nitric oxide?
- it is colorless
- it has an irritating odor
- it is not toxic
- it is not harmful
Presence of which of the following can be felt near the photocopier, television set, microwave oven, etc.?
- chlorofluorocarbons (chlorofluorocarbons (CFCs))
- methane
- ozone
- lead compounds
The extension of troposphere above the Earth's surface is
- 12 km
- 50 km
- 80 km
- 70 km
The energy of sunlight is converted into heat by
- oxygen only
- nitrogen only
- hydrogen
- oxygen and nitrogen
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