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Author Question: On its icy surface, Uranus's satellite Ariel has smooth valleys with few craters. Other areas are ... (Read 112 times)

Destiiny22

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on: Jul 27, 2018
On its icy surface, Uranus's 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

Uranus and Neptune appear blue or blue-green because
 
  a. their atmospheres absorb blue light very efficiently.
  b. their solid air-less surfaces are this color
  c. their surfaces are covered with liquid water with no atmosphere
  d. traces of methane in their atmospheres absorb red light very efficiently.


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guyanai

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

a

Answer to Question 2

d


Destiiny22

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Reply 2 on: Jul 27, 2018
Excellent

cici

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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