Ques. The CO2 content by volume, in the atmospheric air is about
A. 3.34%
B. 4%
C. 0.0314%
D. 0.34%.
Answer:C
Ques. The CO2 content by volume, in the atmospheric air is about
A. 3.34% B. 4% C. 0.0314% D. 0.34%.