Question

What is one thing that happened to Earth during the ice ages?

How long did it take for Stone Age people to migrate around the world?

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Answer 1

Answer:

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Explanation:

The onset of an ice age is related to the Milankovitch cycles - where regular changes in the Earth's tilt and orbit combine to affect which areas on Earth get more or less solar radiation. When all these factors align so the northern hemisphere gets less solar radiation in summer, an ice age can be started

After the Last Glacial Maximum, North Eurasian populations migrated to the Americas about 20,000 years ago. Northern Eurasia was peopled after 12,000 years ago, in the beginning Holocene. Arctic Canada and Greenland were reached by the Paleo-Eskimo expansion around 4,000 years ago.

Answer 2

Answer:

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The onset of an ice age is related to the Milankovitch cycles - where regular changes in the Earth's tilt and orbit combine to affect which areas on Earth get more or less solar radiation. When all these factors align so the northern hemisphere gets less solar radiation in summer, an ice age can be started.

Explanation:

After the Last Glacial Maximum, North Eurasian populations migrated to the Americas about 20,000 years ago. Northern Eurasia was peopled after 12,000 years ago, in the beginning Holocene. Arctic Canada and Greenland were reached by the Paleo-Eskimo expansion around 4,000 years ago.