Some Pleistocene glaciers were still retreating as recently as ________ years ago.
A) 900
B) 9,000
C) 90,000
D) 900,000
E) 9,000,000

Name: Some Pleistocene glaciers were still retreating as recently as ________ years ago. A) 900 B) 9,000 C) 90,000 D) 900,000 E) 9,000,000
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Question

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The Pleistocene era ended approximately 11,700 years ago, and some glaciers were still retreating at that time. Choice B, 9,000 years ago, falls within this range and is the most accurate option.

Some Pleistocene Glaciers Were Still Retreating as Recently as ________