What two north american countries do immigrants come to

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 is the mercury length of time for one revolution around the sun?

How does the bare soil surface type affect the amount of runoff