Question

We always see the same face of the Moon, because _______.

• A. It is smaller than the Earth.
• B. It revolves on its axis in a direction opposite to that of the Earth.
• C. It takes equal time for revolution around the Earth and rotation on its own axis.
• D. It rotates at the same speed as the Earth around the Sun.

Answer 1

Answer: (C)

It takes equal time for revolution around the Earth and rotation on its own axis.

It takes approximately 27 days for the moon to complete 1 revolution around the earth and it takes the same amount of time for it to complete 1 rotation on its own axis. As a result of this, we always see the same face of the moon.