Class 6 Science Online Tests
Composition of Air MCQ (Multiple Choice Questions) PDF Download
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Composition of Air MCQ (PDF) Questions Answers Download
A greenhouse gas that absorbs energy and maintains the earth's temperature is
- carbon dioxide
- oxygen
- nitrogen
- argon
The main constituent in air is
- nitrogen
- oxygen
- argon
- water vapor
In desert areas, the water vapor content is
- different
- higher
- low
- constant
In humid areas, the water vapor content is
- higher
- lower
- constant
- none of them
Water vapor is less dense than
- temperature
- air
- dust
- space
Class 6 Science Practice Tests
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