WILL GIVE PZ ANSWER *CORRECTLY* What is the “Ring of Fire”?

1.the molten outer core of the Earth that surrounds the inner core

2.the hot, liquefied rock that flows from volcanoes into the Pacific Ocean to form new land in Hawaii

3.a string of volcanoes and earthquake belts around the rim of the Pacific Ocean

4.the tropical areas that surround the Equator
i think its 3.a string of volcanoes and earthquake belts around the rim of the Pacific Ocean
but im not sure.