Describe some problems hominids may have faced as they migrated around the world

No idea who those people are, but I would assume they faced harsh weather conditions considering the nomads moved around a lot (or just a little) as well, and they were facing the Ice Age.

Explanation:

So, I would say either: harsh weather conditions, hypothermia, frost bite, etc. Or other related things, maybe even food scarcity.

c. the dred scott v. sandford case,

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity