I believe it's upper and lower
Answer:
nonegalitarain
Explanation: hope this helps
You'd find the information in the Congressional records.
This is referred to as the agricultural revolution - option d. It allowed the people to plant their own food (rather than collect) and gave them more security in life. (they could plan ahead and collect food for later).
Answer:
I think it is C because new advances in sailing and navigation led them to leedto advances in sea exploration.