Most of the work of mixing humus within the soil is done by A fungi
B. ants
C. earthworms.
D. bacteria.

C. earthworm

Explanation:

Earthworms do most of the work of mixing humus with other materials in the soil. They carry humus down to the subsoil and subsoil to the surface.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully