What type of wave interaction allows you to hear someone and not see them?

Hello,

The answer should be "sound waves".

Reason:

If a gun go off the sound waves can go through anything to allow the person to hear for example: the sound wave can go through walls, water, and hard surface. It can also allow you to hear something but not see it therefore the answer is sound wave!

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

They formed the oceans.  as they melted water was formed and the water made the oceans

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