Why two astronauts CANNOT talk to each other in space?
A Sound cannot be heard due to Moon’s gravitational force.
B Sound reflects back.
C Sound travels only in straight line.
D Sound cannot travel through vacuum.
Answer:D
Why two astronauts CANNOT talk to each other in space?
A Sound cannot be heard due to Moon’s gravitational force. B Sound reflects back. C Sound travels only in straight line. D Sound cannot travel through vacuum.