Astronomy current events question: latest lunar ice evidence

Astronomy 210L, Spring Semester 2010
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!)

NASA news release, "NASA Radar Finds Ice Deposits at Moon's North Pole," March 2, 2010
http://www.nasa.gov/mission_pages/Mini-RF/multimedia/feature_ice_like_deposits.html

What is the latest evidence for water ice at the north pole of the moon?
(A) Comparison of radar reflections from shadowed craters.
(B) Traces of organic materials collected by rovers.
(C) Dusty snow blowing into small craters.
(D) Temperatures hovering around the freezing point of water.
(E) Accumulated ice in craters, compared to Apollo mission images.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 16 students
(B) : 2 students
(C) : 0 students
(D) : 1 student
(E) : 13 students