Explanation : The term ground zero describes the point on the Earth’s surface closest to a detonation. In the case of an explosion above the ground, ground zero refers to the point on the ground directly below the detonation. The World Trade Center site, previously known as “Ground Zero” after the September 11 attacks, sits on 16 acres in Lower Manhattan in New York City. The previous World Trade Center complex stood on the site until it was destroyed in the September 11 attacks; Studio Daniel Libeskind, the Port Authority of New York and New Jersey, Silverstein Properties, and the Lower Manhattan Development Corporation oversee the reconstruction of the site. ....Read more