The carbon dioxide percentage in the soil air is

A. 79.0

B. 0.25

C. 0.03

D. 3.03

Answer: Option B

Solution(By Examveda Team)

The carbon dioxide percentage in the soil air is 0.25%.
The soil air contains several gases including nitrogen, oxygen, carbon dioxide and water vapour. Soil air constantly moves from the soil pores into the atmosphere and from the atmosphere into the pore space. Soil air and atmospheric air differ in compositions.