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Author Question: The main source of energy for a star as it grows in size to become a red giant is A) hydrogen ... (Read 71 times)

erika

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on: Jul 27, 2018
The main source of energy for a star as it grows in size to become a red giant is
 
  A) hydrogen fusion in the central core.
  B) helium fusion in the central core.
  C) hydrogen fusion in a shell surrounding the central core.
  D) gravitational contraction.

Question 2

Which two properties are most important in determining the surface temperature of a planet?
 
  A) composition and distance from the Sun
  B) size and chemical composition
  C) size and atmosphere
  D) internal temperature and atmosphere
  E) distance from the Sun and atmosphere


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Kjones0604

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

C

Answer to Question 2

E


erika

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

sarah_brady415

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Reply 3 on: Yesterday
Wow, this really help

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