Web Based GIS at the MSC


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	PLATE TECTONICS QUIZ Instructions: Chose the best answer by putting a check in the box to the left. When finished scroll back to top to grade your quiz.
	1. How do tectonic plates interact? A. They collide B. They pull apart C. They move past one another D. All of the above choices are correct 2. The boundary between two tectonic plates moving apart from one another is called a _________________. A. Divergent boundary B. Convergent boundary C. Rift D. Subduction zone 3. _______________ occur when two plates slide past one another. A. Transform faults B. Convection currents C. Mid-ocean ridges D. Convergent boundaries 4. Two of the main effects of plate tectonics are ______________________. A. Earthquakes and floods B. Floods and tornadoes C. Seafloor ridges and rift valleys D. Earthquakes and volcanoes 5. The theory of ______________ states that plates move around on the asthenosphere. A. Continental drift B. Seafloor spreading C. Subduction D. Mid-ocean ridge 6. The San Andreas Fault is a _______________ . A. Divergent boundary B. Subduction zone C. Convergent boundary D. Transform fault boundary 7. One of the best predictors of whether earthquakes will occur in a region is ___________________. A. A history of earthquakes there B. Presence of plate boundaries C. Both of the above choices are correct D. Neither of the above choices is correct 8. An earthquake of magnitude 7.5 has ______________ amplitude than a magnitude 6.5 earthquake. A. Twice as much B. Ten times as much C. 32 times less D. 32 times more 9. A volcano is an opening in Earth’s surface that often forms a ___________ when layers of lava and volcanic ash erupt and build up. A. valley B. mountain C. landslide D. mudflow 10. The greatest number of active volcanoes are found ____________________ . A. In the southern hemisphere B. In the Pacific Ring of Fire C. In the Mid-Atlantic Ridge (score will appear at top of page)