What are we seeing happen to the earth’s magnetic field right now?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics? he proposed that plates carry parts of the seafloor. he theorized that pieces of earth move for a limited time. he suggested that the asthenosphere is broken into segments. he observed seafloor cracks similar to existing cracks in the continents.

What factors led to europe's global dominance in economic and political factors? what impacts did that dominance have on other peoples and environments?

What was the first official pair of sister cities?