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.
FOR: person, occupation, and environment work together continuously across time and space in a way that is constantly changing their balance. -Goal is to keep the 3 variables in as much balance as possible. -typically, 3 variables are more likely to be balanced at the beginning of life. EHP.