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Author Question: Which statement about Mars' two moons is FALSE? A) Both are in retrograde orbits. B) Both rotate ... (Read 43 times)

ssal

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on: Jul 27, 2018
Which statement about Mars' two moons is FALSE?
 
  A) Both are in retrograde orbits.
  B) Both rotate synchronously, keeping one face turned towards Mars.
  C) Phobos is larger than Deimos.
  D) Phobos revolves around Mars in less than a Martian day.
  E) Both are very dark, heavily cratered bodies.

Question 2

How can the light reflected off a planet reveal information about its atmosphere, even though the planet is not creating this light?
 
  What will be an ideal response?


dellikani2015

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

A

Answer to Question 2

The light has to pass through the cool, thin gases in the planet's atmosphere, so that additional absorption lines will be added to the reflected light that were not present in the solar spectrum that reached the planet.


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