Astronomy current events question: Titan surface features

Astronomy 210L, Spring Semester 2011
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!)

Astronomy.com editors, "New Theory: Titan Shaped by Weather, Not Ice Volcanoes," April 11, 2011
http://astronomy.com/News-Observing/News/2011/04/New%20theory%20-%20Titan%20shaped%20by%20weather%20not%20ice%20volcanoes.aspx

According to NASA researchers, surface features on Saturn's moon, Titan, may be caused by __________ rather than by ice volcanoes.
(A) wind, rain, and meteorite impacts.
(B) tidal forces from Saturn.
(C) ice plate tectonics.
(D) methane geysers.
(E) flowing glaciers.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 28 students
(B) : 5 students
(C) : 9 students
(D) : 6 students
(E) : 0 students