Chemistry · Atmosphere and Environmental Chemistry
Why is free hydrogen gas not found in significant amounts in the Earth's lower atmosphere?
- 1It is highly inflammable and burns up completely
- 2It instantly combines with oxygen to form water
- 3It is fully absorbed by terrestrial plants
- 4It is the lightest gas and escapes into the upper atmosphere✓
Correct answer
It is the lightest gas and escapes into the upper atmosphere
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