GLY1000 – The Dynamic EarthAnswer Key for Exam #1 Test Bank Questions Part One: Chapters 1-41. A, Mars, Mercury, and Venus2. C, Jupiter, Saturn, Uranus, and Neptune3. C, The Milky Way4. C, Ice and dust5. C, Pluto has officially demoted from its former status as one of nine major planetsin our solar system6. A, Earth was spherical (round)7. D, Galileo8. C, Sun was the center of the Earth’s orbit9. D, Pluto and Eris are now both considered planets10.D, Wave; wavelength; frequency11.A, Expanding12.B, The Universe is considerably older than Earth13.B, 13.7 Ga ago14.A, Red shifted15.A, True16.E, A and C are both correct17.D, Large and hot18.A, Protostar19.C, Hydrogen and helium20.B, Very hot21.B, Denser22.B, Dipole (such that produced by a bar magnet)23.B, Becoming less dense24.B, Oort cloud25.A, Speed up26.A, Solar wind particles are directed toward the poles and excite atmospheric gases27.D, Both are composed of rock and ice28.C, Volatiles29.C, Organic materials30.B, Ocean plains (2.5-4.5 km below sea-level)31.B, Surficial freshwater, the oceans, groundwater, and atmospheric water32.C, Iron33.D, Topography; bathymetry34.C, Does not have atoms arranged in an orderly pattern35.D, None of the above are correct36.B, Granite37.A, And pressure both increasing38.C, Convection39.D, Inner core40.D, 7 to 70 km41.C, Core42.B, Radiation; conduction 43.A, Advection44.B, Crust, upper mantle, transition zone, lower mantle, liquid outer core, solid inner core45.A, Considerably more dense46.B, The Moho47.A, Greater portion of silica48.B, Oceanic crust49.A, Chemistry (mineral content); degree of physical rigidity50.C, Cooler and less able to flow51.D, All of the above are correct52.D, All of the above are correct53.D, Cannot be directly proven54.A, Hess and Dietz55.D, Lower west coast of Africa; east coast of North America56.D, Combined to form a supercontinent (he termed Pangaea) in the Late Paleozoic through the Mesozoic57.A, Can be used to infer the ancient climate of the Earth; they are deposited in environments that are restricted to warm climate. 58.A, Africa59.B, Glossopteris60.A, Magnetite61.D, All of the above are correct62.C, 1,500 km63.B, False64.B, Magnetic declination65.B, False66.B, Guyots67.C, 200 million68.D, Military needs in WW269.B, Gabbro, basalt70.C, At the edges of ocean basins71.C, Had normal polarity72.B, Sea-floor spreading rates are relatively rapid73.A, Mid-ocean ridges74.C, Incorporates and explains both sea-floor spreading and continental drift75.C, A continental coastline that coincides with a plate boundary76.B, Passive margins77.B, False78.A, Active margins79.C, Oceanic or continental lithosphere or a combination of both80.B, The presence of an earthquake belt81.B, Ocean trenches82.A, True83.C, Temperature (the lithosphere is cooler than the asthenosphere)84.A, True85.D, Initially less dense at the age of formation, but eventually becomes more dense86.A, True87.B, Divergent plate boundaries88.A, Convergent 89.A, Convergent90.C, 670 km91.B, Divergent92.B, An oceanic plate subducts beneath another oceanic plate93.C, Within a downgoing plate at a subduction zone94.B, False95.A, Hot-spot volcanism 96.C, An extinct oceanic hot-spot volcano that has subsided below sea level97.B, Plates98.C, Within either continental or oceanic plates99.B, Collision and mountain formation100. C, The Basin and Range Province; Himalayan Mountains Questions Part Two: Chapters 4-81. B, Ore minerals2. F, B and C are both correct3. C, Petroleum4. D, A fixed crystalline structure (spatial arrangement of atoms and ions)5. A, True6. C, Halite7. B, X-ray diffraction8. B, False9. C, Does not have a fixed crystalline structure10.B, The crystals have abundant room to grow in their hollow surroundings11.D, The bank accounts of rock shop owners12.B, False13.A, True14.B, Electron, proton, nucleus, atom15.A, Chloride is chlorine’s anion16.A, Hydrogen bonds; van der Waals bonds17.D, All of the above are correct18.F, None of the above are correct19.B, Precipitation; precipitate 20.D, Streak21.C, Luster22.B, Fracture23.B, The ability to resist being scratched by other substances24.B, Specific gravity25.D, None of the above are correct; multiple properties must be used to diagnose amineral26.C, Great specific gravity27.B, Conchoidal28.C, Talc29.A, Quartz30.A, Silicates31.B, Oxygen32.B, Chemistry, specifically the anions within the chemical formula33.C, Pearls34.C, Exceptionally coarse grained35.A, Kimberlite36.C, is found beneath the Earth’s surface, whereas lava usually has felsic composition. 37.C, cool more slowly38.C, lavas; magmas 39.D, All of the above are correct40.A, True41.C, Water and Carbon Dioxide 42.C, Melting due to heat transfer from rising magma43.D, Loss of volatiles to the atmosphere44.B, Decrease45.C, Be much hotter than at present46.B, More felsic than the original chemistry of the rock that was partially melted47.B, Mafic48.C, More felsic than the source rock49.D, All of the above are correct50.A, Move upward, away from where it formed51.A, Increase52.A, More felsic53.D, Smaller; pancake54.D, All of the above are factors55.B, More mafic than the magma56.D, Sheet-like intrusion that cuts across preexisting layers57.C, Intrusion formed within the magma chamber of a volcano58.B, Pluton59.D, Sheet-like intrusion that cuts across preexisting layers. 60.C, Extrusive; high 61.A, Pieces of surrounding country rock are broken off and assimilated62.A, Coarser grained63.B, Possess exceptionally coarse grains64.A, Olivine65.A, Porphyritic66.B, Plagioclase 67.D, All of the above are correct68.D, Pyroclastic debris 69.C, Welded tuff70.D, Rhyolite71.B, Glassy72.C, Tuff73.A, Intrusive igneous rocks74.C, Hawaii75.B, Mantle hot spots76.A, The Aleutian Islands of Alaska77.C, Rifting78.A, Flood basalts79.C, Weathering 80.B, Erosion81.C, Organic82.C, Clastic83.A, Biochemical84.B, Dolostone85.D, Mineral composition86.B, Calcitic and aragonitic skeletons of marine invertebrates87.D, Warm; wet88.B, Chemical89.C, Wind90.D, Possesses more rounded grains than breccia91.D, Arkose92.C, Velocity of the water at the moment of the sediment settled to the bottom93.A, The development of layering within sedimentary rocks94.A, True95.B, Turbidity current deposited these beds, depositing coarser material first96.D, All of the above are correct97.D, All of the above are correct98.A, Clay-to boulder-99.C, Beach100. C, Deltas101. A, Shallow-marine102. B, False103. B, Shallow-marine carbonate104. C, A & B are correct105.
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