On the surface of which moon of Saturn are liquids observed to exist?
A) Enceladus
B) Mimas
C) Iapetus
D) Titan
Question 2
Suppose the date is March 21 and the Sun passes through your zenith at noon. Where are you?
A) the equator
B) the Tropic of Cancer
C) the Tropic of Capricorn
D) the Arctic Circle
E) the Antarctic Circle