even though only a tiny amount of the gases in earth s atmosphere are greenhouse gases they have a huge effect on climate there are several different types of greenhouse gasesthe major ones are carbon dioxide water vapor methane and nitrous oxide all of these have molecules with three or more atomsarth s greenhouse gases even though only a tiny amount of the gases in earth s atmosphere are greenhouse gases they have a huge effect on climate there are several different types of greenhouse gases the major ones are carbon dioxide water vapor methane and nitrous oxide
(The territory was later named the District of Columbia, within which the city of Washington was built.) The location for the new territory was centralized among the Eastern Seaboard states and was about 90 miles (145 km) inland from the Atlantic Ocean on land ceded by Maryland and Virginia.
WASHINGTON, D.C. Washington DC is not one of the 50 states. But itâs an important part of the U.S. The. District of Columbia is our nationâs capital. Congress established the federal district from land belonging to the states of Maryland and. Virginia in 1790. The Virginia portion was returned in 1846, leaving a 177-square-kilometer.