GE70AFINAL_answers

GE70AFINAL_answers - GE 70A FINAL EXAM Answer Key This is a...

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1 GE 70A FINAL EXAM Answer Key This is a three-part exam, totaling of 200 points. Use the scantron provided to you to answer Part I (be sure to put your name on it, and to bubble in your name and student ID number on the back of the scantron form). Write your answers to Parts II and III on these exam pages. Divide your time judiciously between Part I (32.5%), Part II (22.5%) and Part III (45%). A calculator may be used for this exam, but the calculations required are simple enough that it is not essential. Part I : Multiple Choice (1 point each, total 65 points). Provide the single best answer to each of the following 65 questions or statements. There is no penalty for guessing, so if you can eliminate an answer or two, then you might as well make an educated guess. If two answers seem possible, choose the one that responds best to what is being asked. 1. Why do we have seasons on the Earth? a. because the Earth is closer to the sun during part of its elliptical orbit (summer) and farther away during winter b. because of the Earth’s tilt, relative to its orbital plane c. because of plate tectonics d. because of the greenhouse effect e. because of the annual variation in ocean currents 2. What type of fault is primarily found associated with the San Andreas Fault? a. dip-slip b. thrust c. normal d. strike-slip e. reverse 3. Which of the following is NOT evidence for Wegener’s hypothesis of continental drift? a. fossil animals match on opposite sides of the Atlantic Ocean b. glacial grooves on the bedrock of South America, Africa, Australia, and India c. the mid-ocean ridge system through all of the Earth’s oceans d. the continents fit together like a jigsaw puzzle e. similar mountain ranges in North American and Europe
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2 4. Which of the following gases do plants use in photosynthesis? a. hydrogen b. oxygen c. carbon dioxide d. carbon monoxide 5. If a planet’s ice sheets grow because of a cooling climate, this causes an increased albedo, leading to: a. a switch to warming conditions b. further cooling c. increased solar energy arriving at the Earth (insolation) d. decreased solar insolation e. no change in climate 6. Which of the following does NOT contribute to the Milankovitch Cycles? a. the periodic change in the Sun’s luminosity during its solar cycle b. variations in the tilt of the Earth c. variations in the eccentricity (elongation) of the Earth’s orb it d. precession of the Earth’s spin axis e. all of the above contribute to Milankovitch Cycles 7. An example of mountains formed by subduction volcanics are the a. Wasatch Mountains of Utah b. Sierra Nevada of the California-Nevada border c. the Black Hills of South Dakota d. the Ozark Mountains of the Oklahoma-Arkansas-Missouri border e. the Rocky Mountains of Colorado 8. The ocean floor gets recycled …. a.
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This test prep was uploaded on 04/02/2008 for the course GE CLUST 70A taught by Professor Morris during the Fall '07 term at UCLA.

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GE70AFINAL_answers - GE 70A FINAL EXAM Answer Key This is a...

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