True i do believe but im not 100% sure this isnt my strong suite
Answer:
Humans were nomads. Their wandering was mainly in search of food and shelter. When they found that certain places had an abundance of food – plant food or animals for hunting, they stayed on. They observed the plants, their growth and when these food sources diminished, they grew plants themselves, from the seeds they collected. This is how agriculture came about.
When humans stopped their nomadic ways and stayed together, it paved the way for formation of the human social structure. Hierarchies were established in due course.
Since in colonial North America, many people did not have the luxuries we have now, their entire lives revolved around work. Without a good harvest season or another product to trade for food, a family could easily go hungry and starve to death. As exemplified through Jamestown's "Starving Time," the leader, whose name escapes me at this time, decided that if the colonists were not willing to work, they would not receive any food. The second question is more of an opinion question that I cannot answer for you.
I fill like the reaction would be distillation or chromatography but distillation has to do with bioling points and chromatography has to do with how far the components separate along the material. but im in chemistry not advance placement.