Which of the following is not a way that humus affects the properties of soil

The one that is not considered to be a way for humus to affect the properties of soil would be: Humus decreases the porosity of soil

Decreases Porosity of soil refers to the situation where the surface of the soil start to deteriorate due to some circumstances. The existence of humus help accelerate the decomposition process that added the properties of the soil. This will increase its porosity.

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