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Question
World History
Posted 7 months ago
How does an Ice Age cause a land bridge, which early humans cross over into?
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Answer from Sia
Posted 7 months ago
Answer
During an Ice Age, significant amounts of the Earth's water are trapped in massive ice sheets and glaciers, leading to a drop in sea levels. This drop in sea levels exposes land that was previously submerged, creating land bridges. One of the most famous examples is the Bering Land Bridge, which connected Asia and North America. Early humans used these land bridges to migrate to new territories.
Key Concept
The Bering Land Bridge and human migration during the Ice Age
Explanation
During the last Ice Age, which peaked around 20,000 years ago, sea levels were much lower than they are today due to the large volumes of water locked in ice sheets. This exposed land bridges, such as the Bering Land Bridge (also known as Beringia), which connected present-day Siberia in Asia to Alaska in North America. Early humans, following herds of animals and seeking new resources, crossed these land bridges, leading to the peopling of new continents. This migration had significant impacts on the development of human societies and the spread of cultures.

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