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Author Question: The letters AGN stand for a. three spectral types of stars. b. active planet. c. active star. ... (Read 150 times)

809779

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on: Jul 27, 2018
The letters AGN stand for
 
  a. three spectral types of stars.
  b. active planet.
  c. active star.
  d. active galaxy nucleus.
  e. None of the other choices are correct.

Question 2

As a Sun-like main-sequence star exhausts hydrogen in its core, it next becomes
 
  a. a protostar.
  b. a red giant star.
  c. a white dwarf star.


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Ahernandez18

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

d

Answer to Question 2

b


809779

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Reply 2 on: Jul 27, 2018
Gracias!

adf223

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Reply 3 on: Yesterday
Wow, this really help

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