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Author Question: The caldera now filled by Crater Lake a. is the center of the Mazama resurgent caldera b. formed ... (Read 100 times)

fbq8i

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on: Jul 13, 2018
The caldera now filled by Crater Lake
   a. is the center of the Mazama resurgent caldera
   b. formed as the top of the Mt. Mazama collapsed into the magma chamber after a major eruption
   c. was formed in a titanic eruption that destroyed Mt. Mazama and blasted pieces of it over hundreds of square kilometers.
   d. is the cooled vent formed when Mt. Mazama became an extinct volcano
   e. prevents future eruptions by providing a way to cool rising magma

Question 2

Forecasts of the Mt. St. Helens eruption in 1980 were ____.
   a. accurate about the force of the eruption, but not its timing
   b. mostly incorrect, leading to mistrust by local authorities and residents
   c. mostly correct, but were not acted on properly by authorities and residents
   d. not made, because the proper technology had not been developed
   e. correct, but did not reach local authorities in time to act on them


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Li Jun

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Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: b

Answer to Question 2

ANSWER: c


fbq8i

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Reply #2 on: Jul 13, 2018
Correct answers!


Li Jun

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Reply #3 on: Jul 13, 2018
Great! Please up vote :D


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