1 A) Gondwanaland B) Pangaea C) North America D) Laurasia 2 A) plowing through oceanic crust B) formed at deep ocean trenches C) formed at mid-ocean ridges D) floating on top of oceanic crust 3 A) sinking magma B) rising molten magma C) earthquakes D) drifting continental crust 4 A) shallow-sea trenches and volcanic islands B) volcanic islands and mid-ocean ridges C) mid-ocean ridges and earthquakes D) mid-ocean ridges and deep-sea trenches 5 A) magnetometer B) paleogeography C) paleomagnetism D) paleontology 6 A) younger than B) a different composition than C) older than D) the same age as 7 A) an isochron B) a magnetic reversal C) a normal polarity D) a reverse polarity 8 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078746361/561688/129_age_ls_170c.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>]]> A) nonexistent B) reversed C) normal D) half-reversed 9 A) at mid-ocean ridges B) in deep-sea trenches C) at plate centers D) at plate boundaries 10 A) convergent boundary B) mid-ocean ridge C) transform boundary D) divergent boundary 11 A) theory of plate tectonics B) hypothesis of continental movement C) theory of seafloor spreading D) hypothesis of continental drift 12 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078746361/561661/133_plateconn_ls_172c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (35.0K)</a>]]> A) near the south pole B) in the middle of the Pacific Ocean C) in northern Eurasia D) along the west coast of North America 13 A) ultraviolet radiation absorbed by rocks B) the decay of radioactive elements C) lightning strikes D) rotation of Earth's core 14 A) quartz B) magnetite C) feldspar D) mica 15 A) All the continents were at the equator. B) All the continents were near the poles. C) It was a time of a giant global ocean, D) Temperature varied greatly form the coast of Pangaea to the inner regions. 16 A) at the mid-ocean ridges B) along the continental shelves C) in the Mariana Trench D) near the Hawaiian Islands 17 A) colliding plates in the lithosphere B) sinking iron and magnesium in the lithosphere C) cooler temperatures in the mantle D) rising convection currents in the magma 18 A) chain of volcanic mountains B) chain of non-volcanic mountains C) inland sea D) rift valley 19 A) pate tectonics B) ocean currents C) weather patterns D) all of the above
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