Question

Why astronauts use radio telescope on moon to talk each other ?????????
Plzzzzzzzz answer as soon as possible....exam tomorrow

Answer 1

sound waves require an atmosphere or an air to  propagate and we know that our natural satellite(moon) has no atmosphere in it...so sound waves can't travel and there will be no communication between speaker and listener ....hence we require radio waves

Answer 2

Sound needs medium to travel from one place to another but there is vaccum in space means no atmosphere so they need radio waves to communicate