geo105 (35)

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Orange Coast College *

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A105

Subject

Geography

Date

May 23, 2024

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pdf

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Uploaded by MasterOxideRhinoceros8

- Volcanic mudflows can be detected remotely by monitoring: characteristic rumbling produced as they rush down valleys. - Which of the following types of volcanic eruptions have occurred on Mount St. Helens since it began erupting in 1980? eruption column, pyroclastic flow, volcanic dome - The igneous feature shown in this figure is a dike - What type of eruption formed this flow-banded obsidian? a viscous lava flow

- Which of the following factors helps magma rise toward Earth’s surface? None of these choices are correct. (Gas bubbles generally form at great depth and drive magma upward, Pressure decreases with increasing depth., Magma is denser and therefore tougher than the surrounding solid rocks.) - Use this graph that relates temperature and pressure to answer this question. What is required if a rock in position B moves to position A on the graph? Temperature would have to decrease

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