Question 3 of 35 Ice ages affected human migration to North America by:
A. exposing land bridges people and animals could walk across.
B. making hunting and gathering more difficult.
C. forcing communities to move constantly to get enough food.
O D. covering more land in water and making it harder to travel by foot.

Explanation:

covering more land in water and making it harder to to travel by foot.

A. Exposing land bridges people and animals could walk across.

I hope it helps

Explanation:

d. the right to establish a one-house legislature

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation