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What gas filters out harmful radiation from the sun?
Stratospheric ozone is a naturally-occurring gas that filters the sun’s ultraviolet (UV) radiation. This is typically regarded as ‘good’ ozone since it reduces the harmful effects of ultraviolet (UV-B) radiation. A diminished ozone layer allows more radiation to reach the Earth’s surface.
What exist in the stratosphere that absorbs harmful UV rays from the sun?
Ozone in the stratosphere absorbs most of the ultraviolet radiation from the Sun. Without ozone, the Sun’s intense UV radiation would sterilize the Earth’s surface.
Which type of radiation from the sun is absorbed by the ozone layer?
The ozone layer is the common term for the high concentration of ozone that is found in the stratosphere around 15–30km above the earth’s surface. It covers the entire planet and protects life on earth by absorbing harmful ultraviolet-B (UV-B) radiation from the sun.
What is the harm from the depletion of Earth’s ozone layer?
Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches Earth’s surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune system damage.
Is ozone a greenhouse gas?
Ozone is technically a greenhouse gas, but ozone is helpful or harmful depending on where it is found in the earth’s atmosphere. The protective benefit of stratospheric ozone outweighs its contribution to the greenhouse effect and to global warming.
What protects Earth from harmful radiation?
Ozone: What is it, and why do we care about it? Most ozone resides in the stratosphere (a layer of the atmosphere between 10 and 40 km above us), where it acts as a shield to protect Earth’s surface from the sun’s harmful ultraviolet radiation.
Which gases in the atmosphere absorbs ultraviolet radiation?
layer in the atmosphere containing the gas ozone, which absorbs most of the sun’s ultraviolet radiation.
Why ozone is naturally available in stratosphere only?
Stratospheric “good” ozone The natural level of ozone in the stratosphere is a result of a balance between sunlight that creates ozone and chemical reactions that destroy it. Ozone is created when the kind of oxygen we breathe—O2—is split apart by sunlight into single oxygen atoms.
Which is ozone gas?
Ozone is a gas made up of three oxygen atoms (O3). It occurs naturally in small (trace) amounts in the upper atmosphere (the stratosphere). Ozone protects life on Earth from the Sun’s ultraviolet (UV) radiation.
Which air absorbs UV rays from sunlight?
As sunlight passes through the atmosphere, all UVC and most UVB is absorbed by ozone, water vapour, oxygen and carbon dioxide. UVA is not filtered as significantly by the atmosphere. Is there a connection between ozone depletion and UV radiation? Ozone is a particularly effective absorber of UV radiation.
Which gas is destroying the ozone layer?
Ozone Depletion. When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere.