Astronomy current events question: newer young dates for lunar surface features

Astronomy 210L, fall semester 2016
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!)
Robert Burnham, "Small Impacts are Reworking the Moon's Soil Faster than Scientists Thought" (October 12, 2016)
The moon may be impacted more frequently that previously thought, based on analysis of NASA's Lunar Reconnaissance Orbiter's:
(A) micrometeorite-induced damage.
(B) orbital fluctuations.
(C) radar reflections.
(D) surface images.
(E) crust samples.

Correct answer: (D)

Student responses
Sections 70178, 70186
(A) : 2 students
(B) : 0 students
(C) : 1 student
(D) : 17 students
(E) : 0 students

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