Astronomy current events question: 2007 OR10 "Snow White" methane

Astronomy 210L, fall 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!)

Space.com staff, "Tiny World 'Snow White' Has Water Ice and Maybe Atmosphere," October 19, 2011
http://www.space.com/13332-snow-white-dwarf-planet-water-ice-methane-atmosphere.html

__________ dwarf planet 2007 OR10 "Snow White" may be evidence that its surface is covered with methane.
(A) Radiation from.
(B) The reddish color of.
(C) Lightning flashes on.
(D) Active cryovolcanoes on.
(E) The weird, football shape of.

Correct answer: (B)

Student responses
Sections 70178, 70186, 70200
(A) : 6 students
(B) : 39 students
(C) : 2 students
(D) : 6 students
(E) : 0 students