Question

4. I plan to spear a fish that is swimming in a lake. Do I need to understand refraction in order to succeed? Why or why not?

Answer 1

You will need to understand refraction, because objects you see from the surface of water, are not really in the same place as you see them. for example, a fish that you see in a pond might be slightly to the left or right underwater.

Answer 2

Yes, you need to understand refraction, because refraction is when an object bends when going into a different medium, meaning, when you put the spear from air to water, it will bend the shape making it harder to spear the fish.
Hopefully that helps!