ConcepTest: Earth Timeline - oldest known rock
Question:
Carefully examine the relative positions of the lettered arrows on the timeline below and estimate the ages represented by each arrow. Identify which letter corresponds most closely to the age of the oldest known rock on Earth.
a. C
b. D
c. E
d. F
e. G
a. C
b. D
c. E
d. F
e. G
Student Responses:
No data yet. The correct response is c.
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