what is ozone layer and ozone hole?

Ozone Layer: The Ozone layer shields refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentrations of ozone(O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere. Ozone Hole: The ozone hole is not technically a hole where no ozone is present, but is actually a region of exceptionally depleted ozone in the stratosphere over the Antarctic that happens at the beginning of Southern Hemisphere spring.. read less

Ozone (O3) high in the atmosphere absorbs ultraviolet radiation from the sun, thereby protecting living organisms below from this dangerous radiation. The term ‘ozone hole’ refers to recent depletion of this protective layer over Earth's polar regions. People, plants, and animals living under the ozone hole are harmed by the solar radiation now reaching the Earth's surface—where it causes health problems from eye damage to skin cancer. The ozone hole, however, is not the mechanism of global warming. Ultraviolet radiation represents less than one percent of the energy from the sun—not enough to be the cause of the excess heat from human activities. Global warming is caused primarily from putting too much carbon into the atmosphere when coal, gas, and oil are burned to generate electricity or to run our cars. These gases spread around the planet like a blanket, capturing the solar heat that would otherwise be radiated out into space. read less

Ozone Layer : The ozone layer, also known as the ozone shield is a spherical region on Earth's stratosphere layer to absorb most of the Sun's ultraviolet (UV) radiation which is actually harmful for living beings on earth. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. Ozone Depletion : Ozone depletion is a phenomena observed since the late 1970s which involves a steady decline of about four percent in the total amount of ozone in Earth's stratosphere (the ozone layer), and a much larger spring time decrease in stratospheric ozone around Earth's polar regions. The latter phenomenon is referred to as the ozone hole. read less

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. Ozone hole is a region of marked thinning of the ozone layer in high latitudes, chiefly in winter, attributed to the chemical action of CFCs and other atmospheric pollutants. The resulting increase in ultraviolet light at ground level gives rise to an increased risk of skin cancer. Air pollution has the ability to affect the earth’s entire ecosystem, as environmental scientists realized when they found direct links between ozone layer destruction and manmade pollutants called CFCs. read less

ozone layer is a layer or we can say a protection layer which protect the harmful rays ( ultra violet rays ) which comes directly from the sun ... n due to this many hazardous things can happen like increase in warming on earth , and from this by human activities like use of chloro-floro carbons , harmful gasess from vehicles ,etc are causing hole in ozone layer which was first seen in australia ..... read less

OZONE LAYER: The ozone layer is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. OZONE HOLE: Excessive thinning of ozone layer when more than half of the ozone gas in a particular area is depleted, and harmful ultraviolet rays can pass through to reach the earth's surface. read less

Ozone layer:The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth. Ozone hole:any part of the ozone layer that has become depleted by atmospheric pollution, resulting in excess ultraviolet radiation passing through the atmosphere. read less