5 Questions
What are the two most abundant gases in the atmosphere?
Nitrogen and oxygen
What is the most important variable component of the atmosphere?
Water vapour
What is the percentage of nitrogen in pure dry air?
78%
What is the percentage of oxygen in pure dry air?
21%
What role does water vapour play in the atmosphere?
It is the source of clouds and precipitation, and it has the ability to absorb or release heat energy.
Study Notes
Atmospheric Gases
- The two most abundant gases in the atmosphere are nitrogen and oxygen.
Composition of Pure Dry Air
- Nitrogen makes up approximately 78% of pure dry air.
- Oxygen makes up around 21% of pure dry air.
Water Vapour
- Water vapour is the most important variable component of the atmosphere.
- Water vapour plays a crucial role in the atmosphere, contributing to various atmospheric processes and phenomena.
Learn about the composition and structure of the Earth's atmosphere, including the percentage of gases like nitrogen, oxygen, argon, and other trace gases. Understand the significance of these gases in affecting weather phenomena.
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