Astronomy current events question: Mars river delta

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!)
European Space Agency press release, "Rare Martian Lake Delta Spotted by Mars Express," September 2, 2011
The European Space Agency Mars Express spacecraft observed __________ in Eberswalde crater on Mars, evidence that it may have once been a lake.
(A) a river delta.
(B) fluctuating magnetic fields.
(C) sand dunes.
(D) fossilized algae beds.
(E) shifting rocks and boulders.

Correct answer: (A)

Student responses
Sections 70178, 70186, 70200
(A) : 17 students
(B) : 3 students
(C) : 1 student
(D) : 0 students
(E) : 2 students

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