Question

Astronauts carry special radio devices to talk on the moon. Why do they
carry these devices?

Answer 1

Answer:

They carry such device because there is no air which is the helps the sound to get vibrated so they take such device which is radio active .

Answer 2

Answer:

Astronauts carry special radio devices to talk on moon because there is nothing out in space (like an atmosphere), the sound waves from one astronaut's voice can't travel over to the other astronaut's ears.

That's why the astronauts use radios to communicate-even if they're floating in space right next to each other!

Explanation:

Hope it helps..