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.
1. fossil fuel-fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content. coal-fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period. fuel-a substance that can be consumed to produce energy; more fuel is needed during the winter months; they developed alternative fuels for aircraft.