Definition of Osceola in English: (C.1804â38), leader of the Seminole Indians; born Billy Powell. Resisting all government efforts to remove his people from their homeland in Florida, he led them in the Seminole Wars, which began in 1835. He was captured in 1837 while bearing a flag of truce.
Bad Ozone-In the Earth s lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources react chemically in the presence of sunlight.Ozone at ground level is a harmful pollutant. Ozone occurs naturally in the Earth s upper atmosphere (the stratosphere), where it shields the Earth from the sun s ultraviolet rays. 2  At ground-level, ozone is an air pollutant that can harm human health.
Summer smog contains pollutants such as a colorless, odorless gas called ozone. Though ozone can be good when it is found in the upper atmosphere, it can be harmful when it occurs at near ground level. Ozone formed in the Earth's lower atmosphere can lead to smog, and can affect your health when you breathe it.mog contains a health-harming pollutant called ozone. Elevated levels of ozone have been shown to cause a variety of negative health effects in the lungs. Smog is most common in big cities; however, even those who live in suburban areas need to be conscious of its dangers.