How to use in-sentence of “humus”:
+ But, the silt, clay, and humus will fill the spaces in the soil.
+ Water is taken into into humus like a sponge absorbs water.
+ The humus can move down with the water and make a layer too.
+ It is best for soil to have a little bit of clay and humus in it for growing plants.
+ They include some of the most common soil life, playing important roles in decomposition and humus formation.
