Which population increases the amount of soil nutrients available to plants? < br /> < br /> a. a dog that buries a bone in the backyard.< br /> < br /> b. rain forest plants that grow toward the light. < br /> < br /> c. a butterfly that pollinates a flower when eating nectar.< br /> < br /> d. earthworms that decompose an apple that fell from a tree.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.