During the Pleistocene ice age
A)there was one large episode of glacial advance.
B)there were several episodes of glacial advance and retreat.
C)Earth's entire surface was covered with ice.
D)Earth's oceans were completely frozen.

Question

Quizplus · Accepted Answer

The Pleistocene ice age was characterized by several episodes of glacial advance and retreat. These cycles occurred approximately every 100,000 years and were the result of changes in Earth's orbit and tilt. The last glacial period ended around 11,700 years ago, marking the beginning of the Holocene epoch. During the glacial periods, large ice sheets covered much of North America and Europe, but the entire surface of Earth was not covered in ice, nor were the oceans completely frozen.

During the Pleistocene Ice Age