What is a wall?
Q: What is a wall?
A: A wall is a vertical dividing surface that divides space in buildings into rooms or protects buildings.
Q: What are walls usually made of?
A: Walls are usually made of stone or brick.
Q: What are the two main purposes of walls?
A: The two main purposes of walls are to support the top part of buildings and to divide space, giving protection from invasion, escape, and weather.
Q: When were city walls used for defense?
A: City walls were used for defense before powerful artillery was invented.
Q: When did most city walls get removed?
A: Most city walls got removed after powerful artillery was invented.
Q: What does "the Wall" usually refer to?
A: The term "the Wall" usually refers to the Berlin Wall, built during the Cold War which fell in 1989. It may also refer to the Pink Floyd album of the same name.
Q: How has sealing people behind walls historically been used?
A: Sealing people behind walls has historically been used as a method of human sacrifice and punishment.