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.
In this lesson we discussed the definition of ecological balance and how it is important for the entire ecosystem. Ecological balance is a term describing how ecosystems are organized in a state of stability where species coexist with other species and with their environment. Ecosystems are not without change however.