Class 6 Science MCQs - Chapter 1
Air and Atmosphere Multiple Choice Questions (MCQs) PDF Download - 1
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The Air and atmosphere Multiple Choice Questions (MCQs) with Answers PDF (air and atmosphere MCQs PDF e-Book) download Ch. 1-1 to study Grade 6 Science Course. Learn Air and Atmosphere Quiz Questions and Answers to study online classes courses. The Air and Atmosphere MCQs App Download: Free learning app for fractional distillation of air, composition of air, gas properties and air test prep for online certificate courses.
The Multiple Choice Question (MCQ): Nitrogen is obtained from the fractional distillation of liquefied air at about; "Air and Atmosphere" App Download (Free) with answers: 186 °C; 196 °C; 176 °C; 166 °C; to study online classes courses. Solve Fractional Distillation of Air MCQ Questions, download Google eBook (Free Sample) for free online classes.
Air and Atmosphere MCQs with Answers PDF Download: Quiz 1
Nitrogen is obtained from the fractional distillation of liquefied air at about
- 196 °C
- 186 °C
- 176 °C
- 166 °C
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
On cooling, a liquid will be changed into
- dense
- solid
- semi-solid
- liquid
Combustion cannot take place without
- water
- carbon
- air
- zinc
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