The young country had severe financial problems. There were both domestic and foreign debts from the war, and the issue of how to raise revenue for government was hotly debated. Treasury Secretary Alexander Hamilton laid plans for governmental financing via tariffs, or surcharges on imported goods, and a tax on liquor.
The second one “Aluminum and steel are good conductors of electricity.” Plastic would not be because it is a insulator. Wood is not a conductor nor a insulator.