`CO_(2)` concentration has which relation with respiration

Options

A. Directly proportional
B. Inversely proportional
C. Both (a) and (b)
D. No relation

Answer

B

Explanation

The rate of respiration is normally not affected by increase of carbon dioxide concentration in the surrounding atmosphere up to 19% but as the concentration increase from 10% to 80% or Progressive decrease in respiration occurs.