Question

The composition of air is not constant everywhere.

• A. True
• B. False

Answer 1

The correct option is A True

Air:

• Air is nothing but a general name for the mixture of gases like$\mathrm{Nitrogen}(78\%),\mathrm{mixed}\mathrm{with}\mathrm{Oxygen}(21\%),\mathrm{Water}\mathrm{vapour},\mathrm{Argon}(0.9\%),\mathrm{Carbon}\mathrm{dioxide}(0.04\%),$and dust.
• The composition of air is not constant and changes from place to place.
• For example: in polluted areas, since emissions of $\mathrm{Carbon}\mathrm{dioxide}\left({\mathrm{CO}}_2\right)$ are very high, the air over there contains a higher percentage of $\mathrm{Carbon}\mathrm{dioxide}\left({\mathrm{CO}}_2\right)$.

Thus, the given statement is True i.e., The composition of air is not constant everywhere.