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Author Question: On its icy surface, Uranus' satellite Ariel has smooth valleys with few craters. Other areas are ... (Read 109 times)

tsand2

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on: Jul 27, 2018
On its icy surface, Uranus' satellite Ariel has smooth valleys with few craters. Other areas are rough with many craters. Based on this, it can be concluded that
 
  a. valleys are young and the rough areas are old
  b. the valleys are old and the rough areas are young
  c. both valleys and rough areas are young
  d. both valleys and rough areas are old

Question 2

The resolution of Olbers' paradox suggests that it gets dark at night because
 
  a. the universe is not infinite in age.
  b. the universe is static.
  c. the universe is closed.
  d. a and b
  e. all of the above


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Dominic

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

A

Answer to Question 2

A


tsand2

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

triiciiaa

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Reply 3 on: Yesterday
Excellent

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