The sum of four and a number is twenty

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 speed of sound in water

In stage 2 farmers used the land primarily to grow food for their families and their small communities.