Study the image about convection currents. convection currents. A trench is labeled on each side of the lithosphere. Points 1 to 4 are labeled. 1: Mantle. 2: Ridge. 3: Asthenosphere. 4: Outer core.

At which location does heat transfer begin as dense material heats up?

1
2
3
4

How did the spanish-american war affect american expansionism? a.) america took control of hawaii, cuba, and the pacific islands of guam. b.) america took possession of cuba and the philippines. c.) america gained control of puerto rico and hawaii. d.) america gained control of cuba, puerto rico, the pacific island of guam and the philippines.