Ch07ClickerQuestions

Ch07ClickerQuestions - Examine the map and answer the...

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  Examine the map and answer the question that follows. X, Y, and Z represent  continental lithosphere, the blank areas represent oceanic lithosphere. How many  plates are present?     1. 3  2. 4  3. 5  4. 6 QuickTime and a TIFF (Uncompressed) decompressor are needed to see this picture.
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1. They form at the Earth’s surface, often as a result of weathering, erosion and deposition. 2. Most are made of minerals that are thermodynamically stable at surface conditions 3. In the rock cycle, igneous and metamorphic rocks are converted to sedimentary rocks at the Earth’s surface. 4. All of the above are true. Which one of the following best describes why the most abundant rocks at the earth’s surface are sedimentary?
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1. Composed of particles that have been transported to the site of deposition 2. Composed of particles that precipitate from lakes or the ocean. 3. Composed of particles only from cataclastites 4. Formed only by biochemical weathering processes 5. Composed of significant amounts of humus and the regolith Which one of the following best describes detrital or clastic sedimentary rocks?
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1. Mostly calcite, with some dolomite and olivine 2. Mostly pyroxenes and amphiboles, and other hydrous minerals 3. Mostly calcite, gypsum and halite 4. Mostly quartz and clay minerals Which one of the following best describes the mineralogy of detrital or clastic sedimentary rocks?
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1. They are thermodynamically stable under conditions at or near the surface of the Earth.
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