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Author Question: The letters AGN stand for a. three spectral types of stars. b. active planet. c. active star. ... (Read 117 times)

809779

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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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Answer to Question 1

d

Answer to Question 2

b




809779

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Reply 2 on: Jul 27, 2018
Gracias!


cici

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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