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.
If a copper wire in a working electric circuit is replaced by a piece of rubber tubing, will there be a current in the circuit. No, the electricity wouldn't flow through the rubber tubing because it is an insulator.