Question

15. Astronomers fail to hear the sound of each other on the surface of the moon.​

Answer 1

Answer:

Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Astronauts are so far from the Earth that gravity is so small. There is no atmosphere in space, therefore propagation of sound is not possible there. Sound needs a material medium for their propagation. In the space, there is no material medium so astronauts cannot listen to each other.

Hence, an astronaut can't hear his companion at the surface of the moon because there is no medium for sound propagation.

Answer 2

Answer:

Yes

Explanation:

Because there is no air in space and contains no oxygen so without air voice cannot travel.