. . . . . . . . nitrogen present is the soil air.
A. 79.2%
B. 69.2%
C. 89.2%
D. 59.2%
Answer: Option A
Solution(By Examveda Team)
The soil air contains several gases of which nitrogen, oxygen, carbon dioxide and water vapor are the most important. Soil air is present in the pores or cavities present in between the loosely bound soil particles. Soil sir constantly moves from the soil pores into the atmosphere and from the atmosphere into the pore spaces.79.2% of nitrogen is present in the soil air, it percentage is more than the atmospheric air.
Related Questions on Soil Science
Which one is the most important among Amphibloes
A. Hornblend
B. Tremolite
C. Diopsite
D. Actinolite
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
Join The Discussion