Ozone (O3) is a molecule consisting of three type O atoms, similar to the atomic number 8 we breathe (O2), however atomic number 8 consists of only two oxygen atoms. In the stratosphere, a region game up in the upper atmosphere, light rays are responsible for the breaking subjugate of oxygen (O2), breathable oxygen into its two separate oxygen atoms. solitary oxygen atoms are markedly reactive. When a lone oxygen atom grapples into contact with a breathable oxygen molecule (O2) it combines to shit ozone (O3). The ozone layer is a small residual amount of ozone strong in a mess in the upper atmosphere. This band of concentrated ozone resides approximately between twenty and forty kilometers high in the stratosphere. The ozone layer reactions that both create and destroy ozone has come into a dynamic equilibrium. This dynamic equilibrium is very(prenominal) huffy and resulted during atmospheric formation (Environment Canada, 1996).
Ozone, however, is very rare even in the ozone layer. Oxygen makes up approximately twenty percent of short letter and ozone makes up only 3 x 10-5 percent of air. Furthermore, this small-scale amount of ozone is enough to protect the earth from most ultraviolet radiation light. Ozone prevents most UV-B radiation from reaching the surface of the earth (Environment Canada, 1996).
Ozone is very important to life on earth because the harmfulness of high-energy UV-B radiation stems from the high energy of these light rays, enabling them to queer into deeply into water, plant tissue and epidermal tissue of animals. increase UV-B radiation results in harming the metabolic system of cells and ultimately vilify to genetic material present in effected cells.
spirit organisms on the surface of the earth have always been undefendable to some, and only slightly differing levels of UV-B radiation depending of geographic location and season. through evolution, cellular repair mechanisms have evolved to...
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