The Moon appears to change shape because we see different amounts of the lit part as the Moon orbits Earth. From Earth's perspective, we see varying amounts of the illuminated part of the Moon.
I’m pretty sure it’s called the tectonic plate theory
The answer is A. colors and symbols because legends are basically there showing you what all the things on the map represent.
As I said in your other post/question on the same topic, you have to rephrase your question in order for us to help you. =)
