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.
Every day you are exposed to an ecosystem of some kind. It is all around us and encompasses everything we touch. Many folks do not understand the impact humanity has on the Earthâs ecosystems. A delicate natural balance in the ecosystems requires diligence and education if the equilibrium is to be maintained.very day you are exposed to an ecosystem of some kind. It is all around us and encompasses everything we touch. Many folks do not understand the impact humanity has on the Earthâs ecosystems. A delicate natural balance in the ecosystems requires diligence and education if the equilibrium is to be maintained.