You read that light waves travel through air and water at different speeds. What is one way this can affect what you see around you?

light waves slow down in water.

Explanation:

light can reflect off of different surfaces, and in water they slow down.

for example, in a completely black room, the light cannot bounce/reflect off of the walls, that's why it is so dark.

hope this helps!

their crystal patterns have been disrupted by stress