Air and Atmosphere Multiple Choice Questions and Answers 1
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MCQ on Air and Atmosphere Worksheets 1 Quiz PDF Download
MCQ: Nitrogen is obtained from fractional distillation of liquefied air at about
MCQ: A greenhouse gas that absorbs energy and maintains earth's temperature is
- carbon dioxide
MCQ: Main constituent in air is
- water vapor
MCQ: On cooling, a liquid will be changed into
MCQ: Combustion cannot take place without