what are some reasons that paleontologists cite for humans being able to transition from hunting and gathering food to raising crops and livestock? (there is more than one answer)a. human brains were larger. b. humans survived the ice age. c. humans learned to live in groups. d. humans developed speech.

What was the purpose of winston churchill’s “blood, toil, tears, and sweat” speech? a. to inform parliament about nazi aggression b. to inspire the british people to keep fighting the nazis c. to update parliament on what he had accomplished so far d. to convince parliament to go to war against nazi germany