C human selection is the answer hope this helps
<span>How much of the Earth’s water is usable as a freshwater resource?
3%</span>
Apples are drawn to a massive object, like the earth, and fall down under a gravitational constant. On the other hand, planets revolve around a more massive object under the same premise. It’s the same idea, just one follows a linear path, and the other has a uniform circular motion path because other forces are acting on it. In other words, the planets ARE still falling, but the sun is also pulled by them so they just keep dancing.
the amount of matters refers to the mass
