Air contains ______ % of CO2 ?

A.0.02-0.03

B.0.03-0.04

C.0.04-0.05

D.0.05-0.06

Show Answer

Answer= Option B

Subscribe
Notify of
guest
0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x