Question

For grade 1,why do we need air to hear sound

Answer 1

Explanation:

sound waves travel through air

if there were no air molecules, no vibration takes place ... so no sound

Answer 2

Answer:

Sound is a wave created by vibrations. These vibrations create areas of more and less densely packed particles. So sound needs a medium to travel, such as air, water—or even solids

Thankyou