Answered: Continental and oceanic crusts differ…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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7. Continental and oceanic crusts differ in their density and thickness but not in their composition Select one: a. True b. False 8. Pick up the wrong statement. Silicates: Select one: a. have a distinct physical property b. have the silicon tetrahedron as their structural unit c. are classified on the basis of how the tetrahedrons join and share oxygen atoms d. are a huge category of minerals and include the very common mineral quartz e. are a major component of continental crust 9. Plagioclase minerals are an example of Select one: a. Polymorphism b. Pseudomorphism c. Isomorphism d. Diamorphism 10. Covalent bonding is more common in sulfide minerals as compared to silicate minerals Select one: a. True b. False 11. Partial melting of the lower continental crust produces a silicic (felsic) magma that eventually solidifies into granite or rhyolite. Select one: a. True b. False

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