Summarize the free ice corridor theory

The Ice-Free Corridor hypothesis (or IFC) has been a reasonable theory for how human colonization of the American continents occurred since at least the 1930s. ... In 1840, Louis Agassiz put forward his theory that the continents had been covered by glacial ice at several points in our ancient history

Explanation:

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The Ice-Free Corridor hypothesis or IFC has been a reasonable theory for how human colonization of the American continents occurred since at least the 1930s. ... In 1840, Louis Agassiz put forward his theory that the continents had been covered by glacial ice at several points in our ancient history.

Explanation:

The Hohokam were affected by their living environment because they lived in a desert, which meant very little rainfall.In order to grow crops in their environment, they had to irrigate or build canals to collect water and help it flow to their fields.