disjoint. adjective apart, detached, disassociated, disconnected, disengaged, disjunct, displaced, dissected, disunited, divided, far between, in two, isolated, removed, rent, riven, separate, separated, severed, split, subdivided, sundered, unassociated, unattached, unconnected, unjoined.
Concluding Thoughts. Ozone is found in two different layers of the atmosphere-the troposphere and the stratosphere. The stratospheric ozone, or good ozone, protects life on earth from harmful effects of the sun's UV rays. We have good reason to be concerned about the thinning of the ozone layer in the stratosphere.
With increasing populations, more automobiles, and more industry, there's more ozone in the lower atmosphere. Since 1900 the amount of ozone near the earth's surface has more than doubled. Unlike most other air pollutants, ozone is not directly emitted from any one source. Tropospheric ozone is formed by the interaction of sunlight, particularly ultraviolet light, with hydrocarbons and nitrogen oxides, which are emitted by automobiles, gasoline vapors, fossil fuel power plants, refineries, and certain other industries.