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.
Definition of Ecological Balance. In a society, there are many jobs that help keep it running smoothly. A doctor, mailman, garbage man, waitress, and farmer all play an important role in our society. Similar to a society, species in an ecosystem each have a role in keeping the ecosystem running smoothly.