ESC 1000 Earth
Science Name:____________
Chapter 7: Plate Tectonics: A
Scientific Theory Unfolds
Part E End of Chapter
Review Questions 12 Points
Your instructor will
either choose three questions of the following or they will be circled on the
paper. If he chose only one, then you may chose two. If he circles two, then
you may chose one. You write a short answer for 4-4-4
points each:
- (#9) What are three major types of
plate boundaries? Describe the Relative plate motion at each of these
boundaries.
- (#10) What is seafloor spreading?
Where is active seafloor spreading occurring today?
- (#11) What is a subduction
zone? With what types of plate boundaries is it associated?
- (#12) Where is lithosphere being
consumed? Why must the production and destruction of lithosphere be going
on at approximately the same rate?
- (#17) How does the continental drift
hypothesis account for apparent wandering of the Earth’s magnetic poles?
- (#20) Briefly describe the three
mechanisms that drive plate motion.