Air (noun)
Definition
Air refers to the invisible mixture of gases that surrounds the Earth, primarily consisting of nitrogen, oxygen, carbon dioxide, and traces of other gases. It is essential for sustaining life and is involved in processes such as respiration, combustion, and weather patterns.
Etymology
The word air traces its origins back to the Old English word “ǣr,” which means atmosphere. It is related to similar words in other Germanic languages.
Synonyms
- Atmosphere
- Breath
- Wind
- Breeze
- Draft
Example
I opened the windows to let fresh air into the room.
FAQs (Frequently Asked Questions)
What is air?
Air is the invisible mixture of gases that surrounds Earth, primarily consisting of nitrogen, oxygen, and trace amounts of other gases.
Why is air important?
Air is essential for breathing, photosynthesis in plants, and maintaining Earth’s temperature through the greenhouse effect.
What are the components of air?
Air mainly consists of nitrogen (78%), oxygen (21%), and trace amounts of carbon dioxide, water vapor, and other gases.
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