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Author Question: Of normal matter, about 25 of it by mass is still primordial helium even today. Indicate whether ... (Read 62 times)

Bob-Dole

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on: Jul 27, 2018
Of normal matter, about 25 of it by mass is still primordial helium even today.
 
  Indicate whether the statement is true or false

Question 2

Of all the planets, only ________ has surface features easily seen from Earth with ground-based telescopes.
 
  Fill in the blank(s) with correct word


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bd5255

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

TRUE

Answer to Question 2

Mars


Bob-Dole

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Reply 2 on: Jul 27, 2018
Gracias!

yeungji

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Reply 3 on: Yesterday
Excellent

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