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?
