1.Lava with low amount of gas as it rises has high viscosity that it piles up at a vent resulting in a _____ slope's shape of a volcano. A. shield B. composite C. cinder 2.shield volcano is formed when the lava contains silica causing it to be viscous that it can travel a great distance. A. more, more B. less, less C. more, less D. less, more 3. Volcanoes that are formed by the accumulation of non-viscous lava that can flow freely. A. Shield volcanoes B. Cinder volcanoes C. Composite volcanoes 4. Volcanoes that are built from alternate solidification of both lava and pyroclastic deposits. A. Composite volcanoes B. Cinder volcanoes C. Shield volcanoes 5. High amount of gas dissolved in magma tend to increase its ability to flow. Therefore, loss of gases makes magma viscous. A. less B. more 6.Magmas with high silica content are viscous than those with low silica content. A. more B. less 7.The magma that contains more silica travels_ before solidifying. A. near B. far 8.The eruption of Taal Volcano is perfect example of _style. A. plinian B. phreatic C. stombolian 9.Viscosity is the property of the material's resistance to flow. The more viscous and thicker the material is, the is its resistance to flow. A. lesser B. greater 10.The viscosity of magma_ with temperature. A. increases B. decreases 11. Mt. Mayon is a_ shaped volcano and has an eruptive style of________. A. composite, strombolian B. shield, vulacanian C. cinder, plinian

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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1.Lava with low amount of gas as it rises has high viscosity that it piles up at a vent resulting in a ___________ slope's shape of a volcano. A. shield B. composite C. cinder 2.shield volcano is formed when the lava contains ________ silica causing it to be __________ viscous that it can travel a great distance. A. more, more B. less, less C. more, less D. less, more 3. Volcanoes that are formed by the accumulation of non-viscous lava that can flow freely. A. Shield volcanoes B. Cinder volcanoes C. Composite volcanoes 4. Volcanoes that are built from alternate solidification of both lava and pyroclastic deposits. A. Composite volcanoes B. Cinder volcanoes C. Shield volcanoes 5. High amount of gas dissolved in magma tend to increase its ability to flow. Therefore, loss of gases makes magma __________viscous. A. less B. more 6.Magmas with high silica content are ____________viscous than those with low silica content. A. more B. less 7.The magma that contains more silica travels___________ before solidifying. A. near B. far 8.The eruption of Taal Volcano is perfect example of ___________style. A. plinian B. phreatic C. stombolian 9.Viscosity is the property of the material's resistance to flow. The more viscous and thicker the material is, the __________is its resistance to flow. A. lesser B. greater 10.The viscosity of magma___________ with temperature. A. increases B. decreases 11. Mt. Mayon is a___________ shaped volcano and has an eruptive style of____________. A. composite, strombolian B. shield, vulacanian C. cinder, plinian

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