Understanding reserves: copper. The table lists the world production and reported reserves of copper over the 13 years between 1995 and 2007. ■ Examine trends (plot price, production, and reserves...

Understanding reserves: copper. The table lists the world production and reported reserves of copper over the 13 years between 1995 and 2007.

■ Examine trends (plot price, production, and reserves against time)—what do you conclude?

■ Tabulate the Reserves/world Production to give the static index of exhaustion. What does the result suggest about reserves?