How did a warming climate 12,000 to 10,000 years ago impact the Paleo-Indians living in the Americas at the time?
a. Paleo-Indians lost land to rising sea levels.
b. Paleo-Indians faced food shortages that resulted in a lower population.
c. Paleo-Indians relied less on hunting big animals and more on fishing and gathering food.
d. Paleo-Indians went to war with each other on a large scale due to scarce water resources.