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Sep 20, 2016 · This seminar presentation summarizes Ozone layer depletion. It introduces ozone and the ozone layer, how ozone depleting substances like CFCs react with ozone leading to its destruction. The consequences of ozone layer depletion include increased skin cancer and other health issues.
Apr 6, 2014 · The document also explains that chlorofluorocarbons deplete stratospheric ozone, causing seasonal ozone holes over Antarctica, and outlines the health and environmental impacts of ozone layer depletion and how to protect the ozone layer and ourselves from UV radiation.
Mar 7, 2017 · The document discusses the ozone layer, its formation and depletion over time. Some key points: - The ozone layer is found 20-30km above the Earth's surface and absorbs UV radiation. - Depletion is caused mainly by CFCs and halogen gases, which are broken down by UV rays to release chlorine atoms that destroy ozone.
Ozone layer depletion is the thinning of the ozone layer that protects the earth from the harmful UV radiations. Explore the causes, effects, and solutions to ozone layer depletion only at BYJU'S.
The ozone layer keeps about 95% of the sun’s harmful UV radiation from reaching the earth’s surface. Chlorofluorocarbon (CFCs) have lowered the average concentrations of ozone in the...
ozone are increasingly being observed in rural areas as well. Stratospheric ozone, in contrast, plays a highly beneficial role. It absorbs most of the sun’s biologically damaging ultraviolet radiation and only allows a small amount to reach the Earth's surface. The ozone layer screens out almost all the harmful
Nov 6, 2023 · Ozone layer depletion is the decline of the ozone layer in the upper atmosphere. This occurs when ozone molecules come into touch with and are destroyed by atoms of chlorine and bromine found in the atmosphere.
PowerPoint Presentation. Topic # 15. OZONE DEPLETION IN THE STRATOSPHERE. see pp 81-85 in Class Notes. “[ The Ozone Treaty is ] the first truly global treaty that offers protection to every single human being.” ~ Mostofa K. Tolba, Director of the UN Environment Programme. OZONE STORY = A very interesting. illustration of the scientific process!
Oct 19, 2023 · Ozone Depletion 101. Far above Earth's surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Learn what CFCs are, how they have contributed to the ozone hole, and how the 1989 Montreal Protocol sought to put an end to ozone depletion.
The ozone layer, approximately 20 to 30 kms above the Earth's surface, reduces the amount of harmful UV radiation reaching the Earth's surface. However, depletion of ozone layer has been reported for quite a few decades now. Ozone depletion describes two related phenomena observed since the late 1970s; a steady decline of about four
