Which of these happens last? A. Nina hits a drum.
B. Nina hears the sound of her drum.
C. Sound waves travel through the air.
D. The surface of the drum vibrates, creating sound waves.

B) Nina hears the sound of her drum.

Explanation:

Sound waves are created when she hits the drum. They then travel through the air, allowing Nina to hear the drum.

i love cake

and don't hate

i know i'm fat

but what's wrong with that

i cant rap

but im sure ya know that

its just for fun

so quit hatin' son

~courtney

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