True or false: The louder you yell into a
megaphone in space,
the more likely it is for
the sound waves to
travel.

True

Explanation:

This is known as a lapse rate. When you shout something to someone across the lake, the sound waves near the surface end up moving faster than the sound waves higher up. Since the speed is greatest near the ground, sound waves bend upward, causing the audio to be just out of ears reach.

c (diamond),

sio2 (quartz)