Season changes due to the change in the position of the earth around the sun true or false

Which are included in five sub fields of geography?

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 difference between external & internal migration