Does anyone know what water source E is?

The earth's internal process which drives seafloor spreading is

Which of the following is defined as combinations of soil particles that vary in size and shape?

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.