According to Map (in the textbook) 1.1, at their peak, glaciers covered a third of the earth's surface and contained so much frozen water that ocean levels were lowered by over 450 feet (140 meters). Where were land bridges exposed during this period?

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The Answer of According to Map (in the textbook) 1.1, at their peak, glaciers covered a third of the earth's surface and contained so much frozen water that ocean levels were lowered by over 450 feet (140 meters). Where were land bridges exposed during this period?

According to Map (In the Textbook) 1