Will the sound be audible if a string is set into vibration on the surface of the moon? Give a reason for your answer.

(NO) No,the sound will not be audible on the surface of the moon.
Sound is a mechanical wave that requires a material medium (like air,water,or solids) to propagate.
The moon has no atmosphere,meaning it is a vacuum.
Since there is no medium for the sound waves to travel through,the vibrations cannot reach our ears,and therefore,no sound will be heard.