Which best supports the idea that the surface of the moon has changed very little?
a) if photographs of the moon were taken millions of years ago, the surface would look the same.
b) because the moon does not have a large iron core, it is not possible for geologic events to occur on the moon.
c) because the moon has no atmosphere, it is not possible for geologic events to occur on the moon.
d) if one considers the history of the moon, there is only one distinct phase of its development.

ANSWER: c) Because the moon has no atmosphere, it is not possible for geologic events to occur on the moon.

Atmosphere is responsible for some of the geological changes (like in Earth) since this is an essential part to allow winds and erosion due to water to form. Only with an atmosphere could a surface change, and the moon, sadly, has none of it. Thus, the surface of the moon will always be the same or has changed very little (when rare asteroids or space debris bump into it ie).

answer: electrons

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.