At the 1997 rate of consumption, what year will the estimated 2,000 billion barrels of oil last?

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

Where would you be most likely to find a freshet?

According ti the following map, what are the most common mineral resources found in the united states?