Astronomy current events question: landslides on Ceres' surface

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!)

Elizabeth Landau, "Landslides on Ceres Reflect Ice Content" (April 19, 2017)
nasa.gov/feature/jpl/landslides-on-ceres-reflect-ice-content

Images of __________ on the dwarf planet Ceres from NASA's Dawn spacecraft may be evidence of a substantial amount of water ice just under its surface.
(A) tectonic plate motion.
(B) landslides.
(C) cryovolcano flows.
(D) water vapor geysers.
(E) wet salt deposits.

Correct answer: (B)

Student responses
Sections 30679, 30680
(A) : 5 students
(B) : 8 students
(C) : 2 students
(D) : 9 students
(E) : 5 students