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Composition of Atmosphere MCQ Quiz Online

Learn Composition of atmosphere Multiple Choice Questions (MCQ) to practice composition of atmosphere quiz answers PDF to study online earth science course. Atmosphere Composition Multiple Choice Questions and Answers (MCQs), Composition of Atmosphere quiz questions PDF for online elementary school courses. "Composition of Atmosphere MCQ" PDF eBook: human caused pollution sources, wind and air pressure, layers of atmosphere, composition of atmosphere test prep for elementary school graduation certificate.

"The percentage of nitrogen in air is equal to" Multiple Choice Questions (MCQ) on composition of atmosphere with choices -0.12, 0.21, 0.01, and 0.05 for online elementary school courses. Study atmosphere composition quiz questions for online certificate programs for online schools.

MCQs on Composition of Atmosphere

MCQ: The percentage of nitrogen in air is equal to

-0.12
0.21
0.01
0.05

MCQ: The gas which has percentage equal to 78% in air is the

oxygen
hydrogen
carbon dioxide
nitrogen

MCQ: The mixture of gases around us is regarded as

ecosystem
atmosphere
environment
climate