The U.S had a democratic system, but Britain had a dynastic system.
Technically, no, it is false that China has finally halted the spread of the Gobi Desert by planting trees, since although they are currently using this tactic, it has not led to a full "halt".
Actually the answer D)Immorality <span />
DONT OPEN THAT LINK IT IS SKETCHY
Answer:
I think it might be
Surrounding seas allowed people to set up ports for trade.
The location near the sea allowed people to interact with other civilizations.
A lack of flat land made people dependent on trade to survive.
Explanation:
Edit: dont listin to me im wrong im pretty sure