Earliest immigrants to north america were required to adapt to which initial environmental challenge

The earliest immigrants to North America were required to adapt to the glaciers and ice.

These immigrants arrived during the period of Wisconsin glaciation when the ice and glacier caused the sea level to drop and hence the immigrants adapted to life in the icy climate. The drop in the sea level caused an exposure of a land bridge that connected Siberia and Alaska.

based on this information, i would advocate against sweatshop labour because it exploits workers in unsafe working conditions with little pay. though sweatshops produce inexpensive goods, they harm the environment, workers, and often use unsafe materials to make consumer goods.

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