Question

what is air ? give a brief description about air in your own words​

Answer 1

Answer:

• Air is a mixture of nitrogen, oxygen, carbon dioxide, water vapours and some other gases. It also contains dust particles.
• Air is mostly gas.
• Air is all around us, but we can’t see it. So what is air, exactly? It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
• Air is important for living things.
• Breathing is part of a process called respiration. During respiration, a living thing takes in oxygen from the air and gives out carbon dioxide. This process gives animals and plants the energy to eat, grow, and live life!

Answer 2

Answer:

Air is mostly gas.

Air is mostly gas.It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.