Assessment: Multiple Choice. Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. . 1. Which of the following DOES NOT describe a convection process? A. the handle of a metal pot is hot while cooking C. a sea breeze B. boiling of macaroni pasta D. ocean water in the surface is warmer 2. Which of the following has a faster movement of molecules? A. hot materials C. cold materials B. warm materials D. room temperature materials 3. Which of the following has a lesser density in a convection cell? A. warm fluid materials C. room temperature fluid materials 6. Which is not a geologic feature that occurs in the plate boundaries? A. mountains C. trenches B. volcanoes D. subduction 7. In which part of the innermost layer of the earth does convection current occur? A. inner core C. mantle B. outer core D. asthenosphere 8. Lithosphere at boundary will uplift and tear apart due to rising hot magma. A. convergent C. transform-fault B. divergent D. mantle 9. Older oceanic crust pushes down towards the at the subduction zone. A. ridge C. fault B. trench D. crack 10. What is the source of heat generated by the core to the mantle? C. molten rocks A. gases D. molten metals. B. decayed radioactive elements B. cold fluid materials D. hot fluid materials 4. In a convection current, hot materials move A. any direction C. upward B. sideward D. downward 5. The motion of gas or liquid caused by differences in temperature is a A. tectonic movement C. convection current B. plate tectonic D. magma chamber