How did tribes gather royalties on coal mining? A. by requiring workers to pay for permits
B. by charging per bushel and ton of coal mined
C. by forcing mining companies to pay for leases
D. by processing and selling coal themselves

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry

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.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.