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Author Question: According to this plot, which is the third most abundant element in the universe? A) boron B) ... (Read 252 times)

saliriagwu

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on: Jul 27, 2018
According to this plot, which is the third most abundant element in the universe?
 
  A) boron B) oxygen C) helium D) lithium E) hydrogen

Question 2

Which type of star spends the shortest time as a main sequence star?
 
  A) B star B) G star C) O star D) M star


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Viet Thy

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

B

Answer to Question 2

C


saliriagwu

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Reply #2 on: Jul 27, 2018
Thanks


Viet Thy

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Reply #3 on: Jul 27, 2018
Welcome :)


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