D. Nebula Remember that the sun is in the center of the solar system. The earth is the planet on which humans inhabit, and we orbit around the sun. The asteroid belt is the circumstellar disc<span> in the </span>Solar System<span> located roughly between the orbits of the </span>planets Mars<span> and </span>Jupiter<span>. Using this info, we only have D. left.</span>
The <span>stream's discharge The volume of water to pass a given point on a stream bank per unit of time, usually expressed in cubic meters of water per second. </span>
