Astronomy current events question: Titan's nitrogen fizzy lakes

Astronomy 210L, spring semester 2017
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)

Preston Dyches, "Experiments Show Titan Lakes May Fizz with Nitrogen" (March 15, 2017)
mpifr-bonn.mpg.de/pressreleases/2017/4

Hydrocarbon lakes and seas of Saturn's moon Titan may bubble up nitrogen, based on:
(A) laboratory experiments.
(B) reflected infrared light.
(C) analysis of released gases.
(D) similar geysers in Siberia.
(E) computer simulations.

Correct answer: (A)

Student responses
Sections 30679, 30680
(A) : 12 students
(B) : 4 students
(C) : 11 students
(D) : 3 students
(E) : 1 student