Plate tectonics is a Select one: a. theory b. no answer for this question c. hypothesis d. opinion

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
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18. Plate tectonics is a Select one: a. theory b. no answer for this question c. hypothesis d. opinion 19.The presence of higher amounts of silica usually results in the lowering of the melting temperature of minerals Select one: a. True b. False 20. The second most common minerals of the Earth's crust are silicates. Select one: a. True b. False 21. Basaltic rocks contain higher Ca content as compared to granitic ones Select one: a. True b. False 22. Quartz in igneous rocks can be of secondary or primary origin Select one: a. True b. False
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