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krystian krystian
wrote...
Posts: 530
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6 years ago
A star has crossed the birth line and thus that star is now called a ________________.
 
  a. main-sequence star b. protostar
  c. YSO d. ZAMS

Question 2

The Sun will one day pass through the instability strip and become a variable star.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 3

Which of the following in not a factor that prevents molecular cloud contraction?
 
  a. thermal motion b. a force exerted by a magnetic field
  c. orbital motion d. turbulence
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2 Replies

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Replies
wrote...
6 years ago
Answer to q. 1

c

Answer to q. 2

FALSE

Answer to q. 3

c
krystian Author
wrote...
6 years ago
Thank you for being such a great website leader! All of your answers were right.
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