Explanation:
The early migrants firstly settled in America and came across Bering Straight .
Due to these diverse population , they scattered .
And the Natives developed by hunting , gathering , fishing . and started farming , and stayed at one place .
But before the appearance of the Columbian population , North America were having around 16 million Indians .
And
Thereafter , the population of Indians reduces due to the loss of battles against the spread of the White civilizations .
Answer:
b
Explanation:
the rock is formed though sedimentation i think
The sahara made migrating rough because it was a desert but it was easier to pass through rather than south afria going through jungles
Answer:
Water level increase, animals that live on ice caps adapt or die, food chain thrown off etc.
