Electricity generation. The production of electricity in 2013 was 23,322TWh. Sources of electricity were coal and peat 41%, natural gas 22%, hydroelectric 16%, nuclear power 11%, oil 4%, biomass and waste 2% and other sources 4%.
The nine Supreme Court Justices on the Supreme Court of the United States are the final arbiters on whether or not a law passed by the legislative branch is constitutional.
Article III, Section 1 of the Constitution establishes the Supreme Court of the United States. Currently, there are nine Justices on the Court. Before taking office, each Justice must be appointed by the President and confirmed by the Senate. Justices hold office during good behavior, typically, for life. The Constitution states that the Supreme Court has both original and appellate jurisdiction.