Question

What covered much of North America between 10,000 and 100,000 years ago? deserts glaciers swamps irrigation

Answer 1

Between 10,000 and 100,000 years ago, much of North America was covered by glaciers, particularly during the last Ice Age. These glaciers shaped the landscape and left significant geological features that we see today. Deserts and swamps may have existed in some regions, but glaciers were the dominant feature across large parts of the continent during this period.