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Author Question: What is the typical size of a comet's nucleus? A) 10 km B) 1 meter C) 100 km D) 1000 km E) ... (Read 53 times)

Starlight

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on: Jul 27, 2018
What is the typical size of a comet's nucleus?
 
  A) 10 km
  B) 1 meter
  C) 100 km
  D) 1000 km
  E) Sizes are unknown because the nucleus is obscured by the coma.

Question 2

Looking for an Earth-size planet around a nearby star (besides the Sun) is like looking for a pinhead located ________.
 
  A) across the street B) a few hundred kilometers away
  C) thousands of kilometers away D) across the length of a football field


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Kaytorgator

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

A

Answer to Question 2

C


Starlight

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Reply 2 on: Jul 27, 2018
Gracias!

sultansheikh

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Reply 3 on: Yesterday
Excellent

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