Question

Identify the gases depicted with their percentage composition in the given pie chart.

• A. (i) Nitrogen (ii) oxygen (iii) carbon dioxide (iv) argon (v) water vapour
• B. (i) Oxygen (ii) nitrogen (iii) water vapour (iv) argon (v) carbon dioxide
• C. (i) Nitrogen (ii) oxygen (iii) argon (iv) carbon dioxide (v) water vapour
• D. (i) Water vapour (ii) oxygen (iii) nitrogen (iv) carbon dioxide (v) argon

Answer 1

The correct option is A

(i) Nitrogen (ii) oxygen (iii) carbon dioxide (iv) argon (v) water vapour

The atmosphere is a mixture of gases with $78\%$ nitrogen, $21\%$ oxygen, $0.03\%$ carbon dioxide, $0.93\%$ argon and small amounts of other gases. Air also contains variable amounts of water vapour, on an average around $1\%$ at sea level and $0.4\%$ over the entire atmosphere.