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Home Q & A Board Science-Related Homework Help Physics Astronomy
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bessieboo97 bessieboo97
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6 years ago
The Sun has a core in which energy travels outward primarily by radiation.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

A megaparsec is equivalent to
 
  a. 3.26 light-years.
  b. 206,265 AU.
  c. the age of our solar system.
  d. a million parsecs.
  e. the diameter of the Milky Way galaxy.

Question 3

Ninety percent of all stars fuse helium to form carbon and lie on the main sequence.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 4

___________ have elongated nuclei with spiral structure extending from the ends of the elongations. The Milky Way is a member of this class of galaxy.
 
  a. Spiral galaxies
  b. Barred spiral galaxies
  c. Elliptical galaxies
  d. Irregular galaxies
  e. S0 galaxies

Question 5

Some young star clusters contain large numbers of protostars.
 
  a. True
  b. False
  Indicate whether the statement is true or false
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Kayla1Kayla1
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bessieboo97 Author
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6 years ago
Thanks for your help!!
Smair87
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Yesterday
Helped a lot
halyna
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2 hours ago
You make an excellent tutor!
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