THE #3 STUDENT COPY

THE #3 STUDENT COPY - Take Home Exam #3 Covering Chapters...

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Take Home Exam #3 Covering Chapters 11, 12, 13, 14 MULTIPLE CHOICE. 1)The ________ was the most recent Pleistocene glacial episode in North America. A)Wisconsinan B) Kansan C)Indianan D) Dakotan 2)Approximately how long ago did the last of the great North American ice sheets melt? A)150,000 yrs B) 1500 yrs C)1.5 million yrs D) 15,000 yrs 3)A ________ cross-valley profile is typical of canyons and valleys eroded and deepened by alpine or valley glaciers. A)U B) V C) Y D) S 4)Which one of the following samples and experimental measurements would provide the most information about the Earth's climate over the last 100,000 years or so? A)sediment cores from a Pleistocene loess deposit in the state of Mississippi; SiO2 content B)cores from sea ice in the Arctic Ocean; NaCl content C)sediment cores from a terminal moraine in Ohio sand to clay ratio D)cores from the Greenland ice sheet; ratios of the oxygen isotopes (0-18/0-16) 5)The ________ of the geologic time scale represents the time of the most recent "Ice Age." A)Pleistocene epoch B) Pleistocene era C)Pliocene era D) Pliocene epoch 6)A ________ is an erosional feature specifically produced by alpine glaciation. A)drumlin B) crevasse spur C)lateral moraine D) U-shaped valley 7)Where is the world's second largest continental ice sheet? A)Antarctica B) Greenland C)Iceland D) Siberian Russia TRUE/FALSE. 8)Fiords are glacier-cut valleys that flooded as sea level rose in post-glacial times. 9)In the north-central United States, much of the land north of the Ohio and Missouri Rivers was covered by one or more of the Pleistocene ice sheets. 10)Great Salt Lake in Utah is the shrunken, salty remnant of a much larger, Pleistocene, pluvial lake called Lake Bonneville. 11)The Pleistocene epoch of geological time began about 6 million years ago. MULTIPLE CHOICE. 12)Most dry lands lie between ________ degrees north and south of the equator. A)20 and 30 B) 0 and 5 C) 40 and 50 D) 5 and 10 13)Which one of the following statements about sand dunes is correct? A)a dune migrates in the direction of inclination of the slip face
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B)the more gently sloping surface is the leeward slope of the dune C)in a sand dune, the more gently inclined strata lie parallel to the slip face D)sand is blown up the slip face and rolls down the more gently sloping flank of the dune 14)Which one of the following is a low-latitude desert characterized by high atmospheric pressures and descending air masses (not rain shadow deserts). A)Atacama Desert in Chile, South America B)desert valleys of the Great Basin, U.S. C)Gobi Desert, China and Mongolia D)Sahara Desert; northern Africa 15)Rainshadow deserts are common in ________. A)the dry valleys of eastern California and Nevada
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This note was uploaded on 04/02/2012 for the course GEOL 100 taught by Professor Timmyjim during the Spring '12 term at Maple Springs.

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THE #3 STUDENT COPY - Take Home Exam #3 Covering Chapters...

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