When earthworms add their waste to the soil and then die and decay in the soil, they are contributing to the formation of

A. silt.
B. clay.
C. litter.
D. humus.

am i the only 1 confused ;)

humus

THE ANSWER IS HUMUS

humus

It sure does help thank you guys

Do you know the meaning of each of your answer choices?

What do you think the answer is?

clay

no problem

Tu madre