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Author Question: Which was the source of lava during the flooding stage of the Moon's development? a. moonquakes ... (Read 50 times)

savannahhooper

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on: Jul 27, 2018
Which was the source of lava during the flooding stage of the Moon's development?
 
  a. moonquakes and tectonic shifts
  b. lower crust and upper mantle
 c. the deep core
 d. volcanoes
 e. impacts

Question 2

A medium-mass star evolves into a red giant because ____.
 
  a. the core expands as new fusion products collect there
 b. the surface of the star becomes cooler
 c. energy from hydrogen shell burning and helium fusion forces the outer layer to expand
  d. the surface of the star becomes hotter
 e. increased stellar winds carry large amounts of material off of the surface of the star


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mathjasmine

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Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

c


savannahhooper

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Reply 2 on: Jul 27, 2018
Excellent

Jsherida

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Reply 3 on: Yesterday
Wow, this really help

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