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Author Question: In addition to asteroids, ________ impacts also provided the primitive Earth with water and ... (Read 91 times)

urbanoutfitters

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on: Jul 27, 2018
In addition to asteroids, ________ impacts also provided the primitive Earth with water and organics.
 
  Fill in the blank(s) with correct word

Question 2

If a star system 30 parsecs distant is found to be broadcasting intelligent radio signals, then their news is already approximately ________ years old.
 
  A) 10 B) 30 C) 100 D) 300 E) 1,000


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EAN94

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

comet

Answer to Question 2

C


urbanoutfitters

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Reply 2 on: Jul 27, 2018
Excellent

xiaomengxian

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Reply 3 on: Yesterday
:D TYSM

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