When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ?
2
Titan, a moon of __________ , and Triton, a moon of _________ , have atmospheres mainly of _________.
3
The planet retains an atmosphere when?
These are just sample questions. The actual quiz contains 25 questions.