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Author Question: Stars spend about 90 of their lifetime on the main sequence. Indicate whether the statement is ... (Read 34 times)

@Brianna17

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on: Jul 27, 2018
Stars spend about 90 of their lifetime on the main sequence.
 
  Indicate whether the statement is true or false

Question 2

According to current scientific estimates, when did the Big Bang occur?
 
  A) about 10 billion years ago
  B) about 65 million years ago
  C) about 4.5 billion years ago
  D) about 14 billion years ago
  E) about 20 billion years ago


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coyin

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

TRUE

Answer to Question 2

D


@Brianna17

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Reply 2 on: Jul 27, 2018
Excellent

ryansturges

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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