Rock On 12 - 1. Fossil fuels are usually formed from: A. B....

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1. Fossil fuels are usually formed from: A. Remains of formerly living things covered by thrust faults in regions with much oxygen. B. Decay of Diet Pepsi. C. Remains of formerly living things buried by sediments in regions with much oxygen. D. Remains of formerly living things buried by sediments in regions with little oxygen. E. Remains of formerly living things covered by lava flows erupted in regions with much oxygen. Where oxygen is present in sediments, bacteria use the oxygen to “burn” organic materials, so oxygen and fossil fuels don’t go together. And, Diet Pepsi is rather resistant to decay, and would not make fossil fuel. Points Earned: 1/1 Correct Answer: D Your Response: D 2. Your friend wants to see some real Pennsylvania coals. Where should you send your friend to see coal in the rocks of Pennsylvania (if you honestly are being helpful), and what coals would your friend see? A. To Ohio; there is no coal in Pennsylvania, but some Ohio coal is shipped through Pennsylvania. B. To the metamorphic rocks of eastern Pennsylvania to see lignite, and to the sedimentary rocks of western Pennsylvania to see more lignite. C. To the sedimentary rocks of western Pennsylvania to see bituminous, and to the metamorphic rocks of eastern Pennsylvania to see anthracite.
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D. To the metamorphic rocks of eastern Pennsylvania to see bituminous, and to the sedimentary rocks of western Pennsylvania to see anthracite. E. To the metamorphic rocks of eastern Pennsylvania to see bituminous, and to the sedimentary rocks of western Pennsylvania to see more bituminous. Bituminous is found with sedimentary rocks, but ones that have been squeezed and heated a bit so they are held together well and are not much like loose sediment; such rocks are common in western Pennsylvania. Anthracite is the most-cooked coal, and is found with metamorphic rocks in eastern Pennsylvania. Pennsylvania has lots of coal, but not much lignite, which would not be found in metamorphic rocks anyway. Points Earned: 1/1 Correct Answer: C Your Response: C 3. The concentration of CO 2 in the atmosphere rose as the last ice age ended, and then stabilized for thousands of years, until humans became serious about changing the atmosphere with the start of the industrial revolution. Suppose that we succeed in raising the CO 2 concentration in the atmosphere to a level twice as high as occurred for the thousands of years after the ice age and before the industrial revolution, and then we hold the concentration constant at that new, higher level for the next thousand years. What would happen to the average temperature of the planet? A. The temperature would increase to a few degrees above the pre-industrial-revolution level, and then stabilize at that new, warmer level. B.
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This note was uploaded on 09/01/2010 for the course GEOSC 010 taught by Professor Alley,richardbanandakrishnan,sr during the Spring '08 term at Pennsylvania State University, University Park.

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Rock On 12 - 1. Fossil fuels are usually formed from: A. B....

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