How did the 1793 yellow fever epidemic end? A. Doctors invented a cure for yellow fever which was given to all infected citizens.
B. All unaffected citizens took the yellow fever vaccine, so the disease became extinct.
C. Cold October weather killed the mosquitoes, so the disease stopped spreading.
D. Citizens fled to the countryside and waited to return until the disease died out.

Which of the following accurately describes the workforces of the united states and canada? a. most of the workforce in the united states and canada is employed in the service industry. b. most of the workforce in the united states and canada is employed in the educational field. c. most of the workforce in the united states and canada is employed in manufacturing and mining. d. most of the workforce in the united states and canada is employed in agriculture.