Question

air is
present in soil between
particles
a​

Answer 1

Answer:

soil gases are the gases found in the hair States between soil component the primary soil gases include nitrogen carbon dioxide and oxygen the oxygen is critical because it allow for respiration of both plant root and soil organisms other natural gases atmospheric methane and radon

Answer 2

Since your question is incomplete I will try to cover as much as I know about your question.

TAKE A LOOK AT THE FOLLOWING POINTS:

1. The air in the soil is similar in composition to that in the atmosphere with the exception of oxygen, carbon dioxide, and water vapor.
2. In soil air as in the atmosphere, nitrogen gas (dinitrogen) comprises about 78%. In the atmosphere, oxygen comprises about 21% and carbon dioxide comprises about 0.36%.
3. However, in the soil air, oxygen usually is replaced by carbon dioxide, so both range from about 0.4% to 21%.
4. Oxygen is used by plant roots and soil microbes during respiration, and carbon dioxide is released.
5. Thus, in the soil, the oxygen levels are generally less than atmospheric levels and the carbon dioxide levels are generally greater than atmospheric levels.

SOME OF THE FACTORS AFFECTING THE AVAILABILITY OF AIR IN SOIL ARE AS FOLLOWS:

1. Depth: Oxygen levels generally decrease with depth in the soil profile due to slow diffusion rates of oxygen from the surface through the soil.
2. Pore size distribution: Soils with large pores promote more rapid oxygen diffusion into and through the soil, and carbon dioxide movement out of the soil.
3. Aeration and drainage: Soils with large pores generally have good drainage (less water) and aeration, while soils with small pores generally have poor drainage and aeration.

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