Question

What causes the phases of the moon?

a
As the Moon moves around Earth, different portions are illuminated.
b
It is closer to the Earth at times and further from Earth at other times.
c
The effect of gravity

Answer 1

Answer: the answer is A

Explanation: you can only see certain parts of the moon as it moves around the world because of the shadow covering most of it.

Answer 2

Answer is option number 1.