Since sound travels faster in warm air, the speed of sound near the ground is increased, leading to a gradual reflection of sound waves.
true or false?

B. False. beause warm air rises up in the air so first of all there is no warm air near the ground and second of all higher the temperature higher will be the collision of molecules so sound will travel a bit slower than lower temperature

The center is basically the heart of it

Answer(b) 60 miles per hour;