Chapter 8: Volcanoes and Plutons – Review Questions Please answer the following


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Chapter 8: Volcanoes and Plutons – Review Questions
Please answer the following questions within a word document and submit. Please do not just copy and paste answers from the textbook. I want to see that you read and understood the material, and I want to see your thoughts in the answers to the questions.
Describe several ways in which volcanoes and volcanic eruptions can threaten human life and destroy property.
Describe three processes that generate magma in the asthenosphere.
Describe magma formation in a spreading center, a hot spot, and a subduction zone.
Describe the origin of granitic magma.
How much silica does average granitic magma contain? How much does basaltic magma contain?
How much water does average granitic magma contain? How much does basaltic magma contain?
Why does magma rise soon after it forms?
Explain why basaltic magma and granitic magma behave differently as they rise toward Earth’s surface.
Many rocks and even entire mountain ranges at Earth’s surface are composed of granite. Does this observation imply that granite forms at the surface?
Explain the difference between a dike and a sill.
Describe how a shield volcano and a cinder cone are different from one another. How do both volcanoes form?
How does a composite cone form?
How does a caldera form?
Give two reasons why additional eruptions of the Yellowstone Volcano seem likely.

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