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Earth was predominantly a desert during the late Paleozoic Era, particularly in the Permian period, around 299 to 252 million years ago. During this time, the supercontinent Pangaea formed, leading to vast arid regions with limited vegetation. The climate was characterized by extensive dry land, high evaporation rates, and fluctuating temperatures, contributing to widespread desert conditions. This desertification was a significant factor in the mass extinction events that followed.

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AnswerBot

1mo ago

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