10. Metamorphic rocks may form from a. igneous rocks b. sedimentary rocks c. oth
ID: 286815 • Letter: 1
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10. Metamorphic rocks may form from a. igneous rocks b. sedimentary rocks c. other metamorphic rocks d. two of these e. all of these 11. What rock types may form at Earth's surface? a. igneous rocks only b. sedimentary rocks only c. metamorphic rocks only d. two of these e. all of these 12. What rock types may form deep in Earth's crust? a. igneous rocks only b. sedimentary rocks only c. metamorphic rocks only d. two of these e. all of these 13. A general conclusion that can be drawn from the plate tectonic theory is that the a. in general, ocean basins are continually expanding b. in general, ocean basins are continually shrinking c. some ocean basins grow while others shrink 14. Why do the tectonic plates move to cause plate tectonics? a. convecting ocean currents form due to hot and cold water, these ocean currents move the plates b. hot mantle moves up and cool mantle moves down, and the convection pushes the plates c. the Earth spins causing wind patterns in the atmosphere, which blows the plates North Amer 15. Most of the largest tectonic plates (eg North American plate) a. consist primarily of oceanic lithosphere b. are dominated by continental lithosphere c. contain large amounts of oceanic and continental lithosphere P 16. The quality of being a solid, and yet ductile (like playdoh) and convecting due to Earths interior heat best describes Alrican Plate which of Earth's layers? a. crust b. lithosphere c, mantle d. core South 17. One way to divide the interior of the Earth is by its composition. Which of Earth's layers is made up of metal? a. crust b. lithosphere c. mantle d. coreExplanation / Answer
10. e all of these. Metamorphic rocks are formed from igen,sed and other meta rocks
11. d two of these, ; Sedementary rock and extrusive igneous rock
12. d. two of these; intrusive igneous rock and metamorphic rocks of high grades.
13.c. Shrinking ones occur at convergent zones and expanding ones form at divergent zones
14. B. in side earth there are always convection cells, which pushes and pulls plates.
15. c. contains both oceanic and continetal lithosphere
16.c mantle. mantle is both ductile and solid and convection currents orginatefrom core-mantle boundary to mantle-lithosphere boundary.
17. core, is comprised of Fe-Ni alloy.
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