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.
Best Answer: What a balanced ecosystem essentially does is filtrate our air supply for all living organisms.When the ecosystem is not balanced, the quality of life for all living organisms suffers.This is why people try to plant a lot of trees and people are trying to keep the environment as free from pollutants as possible.est Answer: What a balanced ecosystem essentially does is filtrate our air supply for all living organisms.