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The ozone layer is a layer of gas molecules which is bombarded with rays from the sun. These are harmful UV rays and this ozone layer in present in the stratosphere.he photosphere is the visible part of the Sun's atmosphere. The parts of the sun's atmosphere from the surface outward are the photosphere, the chromosphere, the corona, and the outer layers of the corona called the solar wind.
Gamma rays, denoted by the lower-case Greek letter gamma, are penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei. It consists of photons in the highest observed range of photon energy. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation gamma rays. Rutherford had previously discovered two other types of radioactive decay, which