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

According to the text, what conflict continues today when it comes to natural wonders? a. the conflict between people who want to waste the resources and those who want to preserve natural wonders. b. the conflict between people who want to preserve natural wonders and those who want economic development. c. the conflict between people who want economic development and those who want to waste the resources.