Question

Inactive component of air constitutes approximately ______ the volume of air.

• A. $\frac{1}{5}$
• B. $\frac{2}{5}$
• C. $\frac{3}{5}$
• D. $\frac{4}{5}$

Answer 1

The correct option is D $\frac{4}{5}$

Inactive component of air i.e Nitrogen constitutes approximately 80% the volume of air.