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Author Question: The letters AGN stand for a. three spectral types of stars. b. active planet. c. active star. ... (Read 155 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
:D TYSM

samiel-sayed

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Reply 3 on: Yesterday
Excellent

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