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When a sound from a source is refracted away from the surface of the earth, it gives an indication that the

Awind is blowing in the direction of the sound.
Bground is cooling faster than the air.
Cair is cooler than the ground.
Dair has high humidity.

Verified Answer :

when a sound from a source is refracted a way from the surface of the earth, it gives an indication that the : c. air is cooler than the ground
The sound wave's speed is heavily relied on mediums that spread across the air, and these mediums are really sensitive and easily responded to change in temperature

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