final_v1

final_v1 - SIO 10 Final Exam, Wednesday Mar. 18 2009...

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SIO 10 Final Exam, Wednesday Mar. 18 2009 VERSION JANUARY 1) In our current understanding of the big bang, _____ a) Earth is much older than the rest of the Universe b) the Universe is considerably older than Earth c) Earth and the Universe formed at about the same time d) there is no way of knowing how old the Universe might be 2) The sun produces its energy by fusion? a) true b) false 3) As the Universe evolved, _____ a) hydrogen concentration has increased through the fission of helium atoms b) hydrogen concentration has increased through the fusion of helium atoms c) the number of hydrogen atoms has likely remained constant d) hydrogen has been lost through fusion to form helium within stars 4) What is the source of the Earth’s magnetic field? a) magnetism is a property of all spinning bodies. b) a large deposit of iron ore in northern Canada c) convective flow in the liquid outer core d) convecting magma in the mantle 5) Most of the Earth’s iron can be found in the crust. a) true b) false 6) The Moon is what type of celestial body? a) star b) planet c) satellite d) asteroid e) comet 7) San Diego is located on the _____ a) North American plate b) Pacific plate c) San Andreas fault 8) What process inside Earth allowed us to measure seafloor spreading? a) conductive cooling b) freezing of the solid inner core c) reversal of Earth’s magnetic field d) alternating ocean currents
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9) At a subduction zone, the downgoing plate a) is always made of oceanic lithosphere b) is always made of continental lithosphere c) can be made of either 10) Which are the two principal mechanisms that drive plate tectonics? a) bombardment and accretion b) ridge push and slab pull c) expansion and contraction d) heating and melting 11) As compared to the asthenosphere, this lithosphere is_____ a) cooler and more able to flow b) hotter and more able to flow c) cooler and less able to flow d) hotter and less able to flow 12) The lowermost layer of Earth’s atmosphere, which sustains life and exhibits weather, is a) mesosphere b) ionosphere c) thermosphere d) troposphere 13) The Wadati-Benioff zone is a belt of earthquakes found _____ a) within an otherwise stable continental interior b) within an overriding plate at a subduction zone c) within a downgoing plate at a subduction zone d) along mid-ocean ridges 14) Which of these are polymorphs of Carbon? a) diamond and quartz b) diamond and graphite c) quartz and graphite d) quartz and olivine 15) Native metals are considered minerals. a) true b) false 16) Which of these is the most abundant mineral class in Earth’s crust? a) carbonates b) halides c) sedimentary rocks d) silicates e) evaporates
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17) Which are the three basic rock types? a) limestone, sandstone, travertine
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final_v1 - SIO 10 Final Exam, Wednesday Mar. 18 2009...

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