Africa and USA because that’s what I think it is I had that question too
Rock transfers heat rapidly would be true.
A biggie: the transcontinental railroad. Because it would economically improve wherever it was, both the North and the South competed for the railroad to be in their respective territory, evidenced by the Kansas-Nebraska Act and the Gadsen Purchase and induction of California as a free state in 1860.
In addition: people could get land cheap because it was abundant and might leave to start afresh economically.
There's other stuff I can't remember as clearly, but there's a little and I hope it helps :)
The inuit in canada and Greenland, and the Yu'pik, Iñupiat, and Athabascan in Alaska, are just a few of the groups that are native to the Arctic.