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Home Q & A Board Science-Related Homework Help Physics Astronomy
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tere tere
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6 years ago
Current observations indicate that the amount of baryonic matter and dark matter in the universe
 
  a. is sufficient great enough to overcome the expansion of the universe.
  b. implies that the universe is closed.
  c. is mostly in the form of black holes and quasars.
  d. are roughly equal.
  e. implies that the universe is open.

Question 2

Why is Saturn's moon Titan able to retain an atmosphere?.....
 
  a. Titan only contains light gases which are easy to retain.
  b. Titan has a large enough mass and is cold enough.
  c. Titan is biologically active.
  d. It is so close to Saturn that Saturn's gravity retains Titan's atmosphere.

Question 3

An open universe
 
  a. has a negative curvature.
  b. has zero curvature.
  c. has a positive curvature.
  d. is finite.
  e. has a center.

Question 4

Which moon of the Jovian planets has a thick, hazy atmosphere?
 
  a. Io
  b. Triton
  c. Europa
  d. Titan
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npandelos1npandelos1
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6 years ago
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tere Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
einstein
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You make an excellent tutor!
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2 hours ago
Thanks for your help!!
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