What in the air allows us to hear sound?

What in the air allows us to hear sound?

Correct Answer: gases
rain
wind
water

Explanation: Sound is a form of energy that travels in waves. Sound waves can’t travel through empty space, but they can travel through gases. Gases in the air allow us to hear most of the sounds in our world. Because of air, you can hear birds singing, horns tooting, and friends laughing. Without the atmosphere, the world would be a silent, eerie place.

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