To celebrate World Wetlands Day, the Ministry of Environment and Tourism held a joint launch of the wetlands and ecotourism promotional material and biome posters as a demonstration of the country's commitment to wetlands and water con servation.
Surface: Perpendicularity is a fairly common symbol that requires the referenced surface or line to be perpendicular or 90Â° from a datum surface or line. Perpendicularity can reference a 2D line, but more commonly it describes the orientation of one surface plane perpendicular to another datum plane.urface: Perpendicularity is a fairly common symbol that requires the referenced surface or line to be perpendicular or 90Â° from a datum surface or line. Perpendicularity can reference a 2D line, but more commonly it describes the orientation of one surface plane perpendicular to another datum plane.
Medical Definition of Perpendicular. 1. 1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth. 2. at right angles to a given line or surface; as, the line ad is perpendicular to the line bc.