Which of the following sequences correctly describes the stages ...

[Themember4]

Which of the following sequences correctly describes the stages of life for a low-mass star?
 
  A) protostar, red giant, main-sequence, white dwarf
  B) protostar, main-sequence, white dwarf, red giant
  C) white dwarf, main-sequence, red giant, protostar
  D) protostar, main-sequence, red giant, white dwarf
  E) red giant, protostar, main-sequence, white dwarf

Question 2

What happened to all of the quarks that existed freely during the particle era?
 
  A) They froze out of the soup of particles at the end of the era.
  B) They combined in groups to make protons, neutrons, and their antiparticles.
  C) They evaporated.
  D) They combined in groups to make electrons and neutrinos.

[LVPMS]

Answer to Question 1

D

Answer to Question 2

B

[Themember4]

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[LVPMS]

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