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Author Question: Why is Saturn's moon Titan able to retain an atmosphere?..... a. Titan only contains light gases ... (Read 78 times)

james

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on: Jul 27, 2018
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 2

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


amit

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


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