Question

Two people standing on the moon cannot hear each other talking. Which of the following reasons accurately explains this phenomenon?

• A. Sound gets scattered in space.
• B. Eardrums cannot vibrate on the Moon.
• C. Sound needs a material medium to propagate, which is absent on the moon.
• D. The speed of sound is very slow on the Moon.

Answer 1

The correct option is C Sound needs a material medium to propagate, which is absent on the moon.

The Moon does not have an atmosphere. Sound cannot propagate in the absence of a material medium.