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Composition of Atmosphere MCQ (Multiple Choice Questions) PDF Download
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The MCQ: The percentage of nitrogen in air is equal to; "Composition of Atmosphere" App Download (Free) with answers: -0.12, 0.21, 0.01, and 0.05 to study high school online courses. Solve Atmosphere Composition Quiz Questions, download Apple eBook (Free Sample) for distance learning.
Composition of Atmosphere Questions and Answers PDF Download
The percentage of nitrogen in air is equal to
- -0.12
- 0.21
- 0.01
- 0.05
The gas which has percentage equal to 78% in air is the
- oxygen
- hydrogen
- carbon dioxide
- nitrogen
The mixture of gases around us is regarded as
- ecosystem
- atmosphere
- environment
- climate
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