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 fuel such as coal, oil, or natural gas that is formed over millions of years from the remains of plants and animals. Greenhouse effect: The warming of Earth's atmosphere due to water vapor, carbon dioxide, and other gases in the atmosphere that trap heat radiated from Earth's surface. Hydrocarbons: Molecules composed solely of hydrogen and carbon atoms.