The partial pressure of oxygen in the atmosphere is 0.21 bar and that of nitrogen 0.78.Which of the following partial pressure levels would you expect to find in the pores of a moderately well-drained soil?
A)0.21 (oxygen)
B)0.80 (nitrogen)
C)0.30 (oxygen)
D)0.50 (nitrogen)
E)0.15 (oxygen)

Question

Quizplus · Accepted Answer

In a moderately well-drained soil, the partial pressure of oxygen is typically lower than in the atmosphere due to microbial respiration and root uptake, making 0.15 bar a reasonable expectation.

The Partial Pressure of Oxygen in the Atmosphere Is 0