Question

Phases of the moon occur because

• A. We can see only that part of the moon which reflects light towards us
• B. Our distance from the moon keeps changing
• C. The shadow of the Earth covers only a part of moon's surface
• D. The thickness of the moon's atmosphere is not constant

Answer 1

The correct option is A

We can see only that part of the moon which reflects light towards us

The phases of the moon occur because we can see only that part of the moon which reflects light towards us

The moon changes its shape everyday. This is because the heavenly body has no light of its own; it can only reflect light from the sun. Only the side of the moon which faces the sun can reflect this light and can appear bright; the other side appears dark.

Therefore, the correct option is (a)