A diversified economy is an economy that has a number of different revenue streams and provides nations with the ability for sustainable growth because there is not a reliance on one particular type...
Lightning can strike rubber although it is not a good conductor of electricity.
The best metallic conductor of electricity is silver. Copper, gold, and aluminum follow in the order named. All metals are relatively good conductors of heat; silver, copper, and aluminum are especially conductive. The radioactive metal uranium is used in reactor piles to generate steam and electric power.