Question

what is the composition of air ?​

Answer 1

Answer:

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.

Answer 2

Answer:

gases present in the atmosphere are the blanket of the year that surround the earth is called atmosphere it extent to a height of about 300 km above the Earth surface the major components of the year are nitrogen 78% and oxygen 21% the remaining one person consist of carbon dioxide 0.03% and few other gases water vapour and dust