The process that breaks down rocks and other substance on the earth's surface is called?

Compare the composition of the moon's surface with the composition of the earth's surface.

What would happen if the krill were removed from the food web

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided