Sustainable Mineral Use and Longer Projected Lifetimes for Scarce Minerals

Multiple Choice

Sustainable mineral use and longer projected lifetimes for scarce minerals can be achieved with all of the following, except ________________.

A) recycling
B) increasing demand and lowering prices for products using these minerals
C) researching more efficient and environmentally friendly techniques of extraction
D) exploring for new reserves
E) finding more available substitutes for scarce minerals