FACTivity – No Littering O-Zone

(ō zōn): A form of oxygen that is a bluish, irritating, sharp-smelling gas containing three atoms per molecule, and that is used especially in disinfecting, deodorizing, and bleaching.

(stra tə sfir): An upper portion of the atmosphere above the troposphere where temperature changes little and clouds rarely form.

(trō pǝ sfir): The portion of the atmosphere which extends from the Earth’s surface to the bottom of the stratosphere (a distance of about 7 miles or 11 kilometers) and in which temperature generally decreases rapidly with altitude.

(ǝl trǝ vī lǝt rā dē ā shǝn): Radiation that has a wavelength shorter than wavelengths of visible light (situated beyond the visible spectrum at its violet end) and longer than those of X-rays.