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Author Question: A star can be a supernova: A) in predictable cycles of decades. B) a few times, at unpredictable ... (Read 80 times)

yoooooman

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on: Jul 27, 2018
A star can be a supernova:
 
  A) in predictable cycles of decades.
  B) a few times, at unpredictable intervals.
  C) only if it can fuse iron in its core.
  D) before it reaches the main sequence, if it is massive enough.
  E) only once.

Question 2

Saturn is the only planet with a ring system.
 
  Indicate whether the statement is true or false


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bhavsar

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

E

Answer to Question 2

FALSE


yoooooman

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Reply 2 on: Jul 27, 2018
:D TYSM

momolu

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Reply 3 on: Yesterday
Excellent

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