Class 6 Science MCQs - Chapter 1
Air and Atmosphere Multiple Choice Questions (MCQ) PDF Download - 14
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Air and Atmosphere MCQs with Answers PDF Download: Quiz 14
Water vapor is less dense than
- temperature
- air
- dust
- space
The liquefied air is put into an apparatus known as
- non-fractional column
- non-fractional column
- fractional row
- fractionating column
The percentage composition of oxygen in exhaled air is
- 16%
- 20%
- 22%
- 32%
The percentage composition of carbon dioxide in exhaled air is
- 8%
- 4%
- 6%
- 10%
As the temperature of the air increases, there is an increases in the capacity of
- mineral
- water vapor
- molecules
- atom
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