In a canyon, if you hear the sound again, what happened?

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Multiple Choice

In a canyon, if you hear the sound again, what happened?

Explanation:
Echo happens when sound waves bounce off a surface and come back. In a canyon, the walls act like a big mirror for sound. When you hear your own noise again, it’s the same sound wave that traveled to the canyon wall, reflected, and returned to your ears a moment later. The pitch stays the same because you’re hearing the same frequency again, just after a short delay. It doesn’t mean the sound disappeared, didn’t change pitch, or suddenly got louder.

Echo happens when sound waves bounce off a surface and come back. In a canyon, the walls act like a big mirror for sound. When you hear your own noise again, it’s the same sound wave that traveled to the canyon wall, reflected, and returned to your ears a moment later. The pitch stays the same because you’re hearing the same frequency again, just after a short delay. It doesn’t mean the sound disappeared, didn’t change pitch, or suddenly got louder.

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