Question

the speed of the sound in air mostly affected by​

Answer 1

Molecules at higher temperatures have more energy and can vibrate faster and allow sound waves to travel more quickly.

Hope it helps :D

Answer 2

Answer:

The speed of sound in air depends on the type of gas and the temperature of the gas. On Earth, the atmosphere is composed of mostly diatomic nitrogen and oxygen, and the temperature depends on the altitude in a rather complex way.