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Author Question: About how many times more luminous than our Sun is a young solar mass protostar just beginning ... (Read 18 times)

bcretired

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on: Jul 27, 2018
About how many times more luminous than our Sun is a young solar mass protostar just beginning convective contraction?
 
  A) 2-5
  B) 5-10
  C) 10-100
  D) 100-1000
  E) a million

Question 2

Which of the following statements about Mars is not true?
 
  A) We have landed spacecraft on its surface.
  B) It is considered part of our inner solar system.
  C) We could survive on Mars without spacesuits, as long as we brought oxygen in scuba tanks.
  D) It has some liquid water today, but used to have large amounts of flowing water.


nickk12214

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

C

Answer to Question 2

C


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