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.
2 Flares 2 Flares Ã. Ecological balance denotes a system where a stable equilibrium has to be maintained in order to continue its original point of balance including the whole system. The organism of earth is inert-connected with the environment in flimsy balanced cycle.