Class 10 Chemistry MCQs - Chapter 6
Environmental Chemistry I Atmosphere Multiple Choice Questions PDF Download - 9
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Environmental Chemistry I Atmosphere Questions & Answers PDF Download: MCQ Quiz 9
MCQ 41: Majority of the UV rays are screened out by
- oxygen
- nitrogen
- ozone
- carbon
MCQ 42: Most of the dust particles and water vapors are present in
- troposphere
- stratosphere
- mesosphere
- thermosphere
MCQ 43: Which of the following comes mainly due to the combustion of fuel used in motor vehicles?
- chlorofluorocarbons (CFCs)
- methane
- carbon monoxide
- lead compounds
MCQ 44: Which of the following causes headache and dizziness and can even cause death if inhaled for a long time?
- sulphur dioxide
- carbon dioxide
- nitrogen dioxide
- carbon monoxide
MCQ 45: Anything that destroys some part of the environment is called
- dirt
- virus
- pollutant
- bacteria
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