The southern colonies reliance on slave labor eventually could have caused problems because it kept the economy from developing manufacturing jobs or other jobs for the middle class.
Answer:
city planning, ancient cities, modern cities, ports, infrastructure, transportation, public spaces, commercial areas, residential neighbourhoods, public hospitals, public schools,
(in order top to bottom)
Of the choices provided all of them are correct except for "Guam revolted". That had nothing to do with the United States intervening.
The british were able to gain more forces by gaining support from the loyalist to fight for the British army and by telling the slaves that if they chose to fight for the British they would be set free after the war was won