A star of spectral type O lives approximately how long on the ...

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A star of spectral type O lives approximately how long on the main sequence?
 
  A) 1,000 years
  B) 10,000 years
  C) 10 million years
  D) 100 million years
  E) 1 billion years

Question 2

Venus is only a little bit (5) smaller than Earth, and its density is only slightly less than Earth's. Therefore, its mass is:
 
  A) the same as Earth's.
  B) just a little bit greater than Earth's.
  C) much greater than Earth's (more than 20 different).
  D) just a little bit less than Earth's.
  E) much less than Earth's (more than 20 different).

[Joc]

Answer to Question 1

C

Answer to Question 2

D

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TYSM

[gcook]

Gracias!