White House. Washington, D.C. White House, formerly known as the Executive Mansion (1810â1902), the official office and residence of the president of the United States at 1600 Pennsylvania Avenue N.W. in Washington, D.C. The White House and its landscaped grounds occupy 18 acres (7.2 hectares).
Quick Answer. Ecological balance is a theory stipulating that natural conditions, including numbers of various animal and plant species, remain stable on their own through variations over time.
Ecological Footprint Accounting and Methodology. The Ecological Footprint is a resource accounting tool that measures the amount of biologically productive land. and water area an individual, a city, a country, a region, or all of humanity uses to produce the resources it. consumes and to absorb its waste using prevailing technology.