<span>"C. one complete spin on its axis</span>" is the correct answer. One complete orbit around the sun by a planet would be referred to as a period of rotation. Periods describe one full movement.
The sky is pale blue in higher altitudes while it is deeper blue in lower altitudes. This is because there is more air molecule closer to earth surface (as a result of higher air pressure) than higher altitudes. The air molecules are responsible for scattering of sunlight hence giving the sky its blue hue. The more the air molecules the more the scattering.
When oceanic or continental plates slide past each other in opposite directions<span>, or </span>move<span> in the same </span>direction<span> but at different speeds, a transform fault boundary is formed.</span>
