1) What are the three different types of plate boundaries? A. Collision, Subduction and Trench B. Divergent, Convergent and Transform C. Divergent, Collision and Cross-cutting D. Igneous, Metamorphic and Sedimentary 2) What type of convergent plate boundary does not produce a volcano? A. Continental-Continental Collision B. Continental-Oceanic Convergence C. Ocean-Ocean Convergence D. Subduction 3) Why was Wegener's Theory of Continental Drift dismissed by the scientific community of the day? A. He was a meteorologist and had no scientific background B. He showed no fossilized evidence C. He had no plausible mechanism to explain continental movement D. He couldn't explain sea-floor spreading. 4) What is the driving mechanism behind plate tectonics (What got it started?) A. Convection currents within the asthenosphere 8. Radioactive decay within the Sun C. Tidal forces of the moon D. Volcanoes during the Cambrian period 5) What is the concept that explains the density difference between the mantle and the crust and how that affects the thickness of the crust below the surface? (Hint: think of an iceberg in the ocean.) A. Isostasy B. Devonian currents C. Gravity waves D. Subduction viscosity 6) The majority of earthquakes happen: A. Along plate boundaries B. In the middle of a tectonic plate 7) What is the name given to the fault pictured in the image to the right? A. Normal B. Thrust C. Below 600km in depth D. In Ohio C. Reverse D. Strike-Slip 30