With increase in soil depth, CO2 content . . . . . . . .
A. Decreases
B. Increases
C. Unchanged
D. None of the above
Answer: Option B
Solution(By Examveda Team)
With the increase in soil depth, CO2 content Increases. Carbon dioxide content in soil is about 0.25% while carbon content in the atmosphere is only 0.04%. The soil can store more carbon when it is protected from microbial activity. Gases fill soil pores in the soil structure as water drains or is removed from a soil pore by evaporation or root absorption.Related Questions on Soil Science
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