Prior to Washington DC, the capital was New York City, then Philadelphia. Hope that help!
The president who was associated was Nixon
There were 5 great achievements, but one of them were Architecture. The ancient Romans developed many new techniques for buildings and construction of all types including concrete, Roman roads, Roman arches, and aqueducts, which evolved their time period.
Automobiles is the technological inventions which is the major source of
greenhouse gases.
Automobiles employs the use of fossil fuels such as refined crude oil to
power it. Fossil fuels have a high percentage of carbon which when burned
in air produces greenhouse gases such as carbon dioxide.
During operation, these greenhouse gases are released into the
atmosphere and contribute to global warming. Other options are cleaner
forms of energy generation as a result of very little or no greenhouse gas
emitted when they are being used.
Read more about Greenhouse gases on brainly.com/question/20349818