Describe a technological change that could decrease the demand for copper-coins, communications, power generation and indoor electrical wire?
- billrussell42Lv 73 months agoFavorite Answer
there are no copper coins, copper is too expensive. Pennies are made of zinc, copper plated.
copper communications wires can be replaced by aluminum wires or by fiber optics.
Power wires can be replaced by aluminum.
High efficiency appliances like LED bulbs reduce the current requirements and thus the amount of copper needed.
- 異域秦後人Lv 73 months ago
REPLACE COPPER WITH ALUMINUM,
REPLACE COMMUNICATION LINE FROM COPPER INTO FIBRE OPTIC CABLE.
- RickLv 63 months ago
Fiber optic cables ..............................