11.   Both metals are used in auto pollution control devices and electronics components.

12.   Both metals are used in pollution-fighting devices in cars and in electronics.

13.   Both metals are used in automotive pollution control devices.

14.   Both metals are used mostly in jewelry, and platinum also is used in catalytic converters.

15.   A final decision on which metal to use has yet to be made.

16.   A stronger currency makes dollar-priced copper cheaper for Korean manufacturers of automobiles and other products that use the metal.

17.   Both metals are used in auto pollution control devices, while palladium is also used for electronics components.

18.   Builders are the biggest consumers of copper, using the metal for plumbing and electrical wiring.

19.   Carmakers use the metals in pollution-fighting catalytic converters.

20.   Copper consumption is closely tied to economic conditions, because the metal is used for construction and in many home appliances.