Washington, D.C., formally the District of Columbia and commonly referred to as Washington, the District, or simply D.C., is the capital of the United States. On July 16, 17â¦90, the United States Congress approved the creation of a special district to serve as the permanent national capital as permitted by the U.S. Constitution.
Fossil Fuels - There are coal, crude oils, oil shales, tar sands and natural gases such as butane, ethane, methane which occur naturally from the decomposition of plant and sea and land organisms over millions of years. Burning fossil fuels is the major way in which humans add to the greenhouse gases in the atmosphere.
fossil fuel. A hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from the accumulated remains of ancient plants and animals and used as fuel. Carbon dioxide and other greenhouse gases generated by burning fossil fuels are considered to be one of the principal causes of global warming.