Which of the following statements correct identifies the term "humus"?
Humus is the organic material found in soil C. Humus is precipitation that contains a high
that results from plants and animals that die concentration of pollutants.
and decay.
b. Humus is the groundwater that is not
replenished by rain.
d. Humus is a means of water transportation
that involves the relocation of ground water
to the surface.