IF YOU GO ON THE NUMBER LINE IT CAN HELP YOU ALOT THE QUESTION DOES NOT HAVE ENOUGH INFORMATION IT NEEDS TTO BE BIGGER
The Great Lakes were formed during the last ice age.
After studying the graph you posted and doing some research there are several tectonic features beneath the moving Pacific Plate that caused the volcanoes to form in both the Loa and Kea trends. A few of the acceptable answers are rising magma, Hawaii Hot Spot, mantle plume, and a hot spot.
Electric bonds form isotopes
