Veda Bites are swipeable micro-lessons — each one teaches exactly one
idea. Here's a taste from this kit; the app has the full deck.
💡 Key Idea
Air Is a Mixture of Gases
Air is not one gas.
Air is a *mixture* of several gases, not a single substance. The main gases are nitrogen (about 78%) and oxygen (about 21%). The remaining 1% includes argon, carbon dioxide, water vapour, and other gases. Because it is a mixture, the gases can be separated by physical means.
↳ Air is a mixture of gases, mainly nitrogen and oxygen.
📖 Definition
What Is Air?
The invisible mixture around us.
Air is the *colourless*, *odourless*, and *tasteless* mixture of gases that surrounds the Earth. It is essential for life. We cannot see air, but we can feel it when it moves as wind.
↳ Air is a colourless, odourless mixture of gases.
⭐ Important Fact
Composition of Air
Two gases make up 99%.
Nitrogen and oxygen together make up about 99% of air. Nitrogen is the most abundant gas at about 78%, and oxygen is about 21%. The remaining 1% is a mix of argon, carbon dioxide, water vapour, and traces of other gases.
↳ Nitrogen and oxygen make up 99% of air.