Describe the atmospheric conditions under which a superior mirage ...

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Describe the atmospheric conditions under which a superior mirage would form.
 
  What will be an ideal response?

Question 2

Under most circumstances the density ________ with increasing altitude.
 
  A) decreases
  B) increases
  C) remains constant

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Answer to Question 1

Answer: A superior mirage forms when images are displaced upward. Light rays are bent concave downward as a result of decreasing density with increasing height. For a mirage to be noticeable, the normal density gradient must be enhanced by a temperature profile in which warm (less dense) air lies above cold air. This may happen, for example, over cool water surfaces with warmer air just above.

Answer to Question 2

Answer: A

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Thanks for the timely response, appreciate it