They are valued metals unlike the paper bills today which is given the value in the hands of the government and are just printed. Gold and silver also have all the main components that money should have, portability, limited supply, durability, divisibility, uniformity, and so on.
Average voters are usually referred to as grassroot voters.
C. United Nations. At the end of WW2, The US thought about world peace. So did other nations. So United Nations was formed. The headquaters is in New York.
Yes, it is generally true that industrial agriculture uses far more fossil fuels than sustainable agriculture, since fossil fuels such as coal and gas are "finite" resources that will eventually be depleted.
