Which of the Following Are Reasons of Ozone Depletion

These compounds release chlorine and bromine on exposure to high ultraviolet light which. Ozone depletion occurs when the natural balance between the production and destruction of ozone in the stratosphere is tipped in favor of destruction.

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They are quite durable and can sustain harsh conditions.

. These compounds are non-reactive non-flammable non-toxic organic molecules and therefore used in refrigerators air conditioners in the production of plastic foam and by the electronic industry for cleaning computer parts etc. The government bans those products which contain CFCs. Ozone depletion gradual thinning of Earths ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities.

Ozone sits in the upper atmosphere and absorbs ultraviolet radiaton another type of solar energy thats harmful to humans animals and plants. The correct option is C CFC. The chlorine catalyzed ozone hole or depletion has a great role in its destruction.

The severe depletion of the Antarctic ozone layer known as the ozone hole occurs because of the special meteorological and chemical conditions that exist there and nowhere else on the globe. Ozone can be lost more rapidly than naturally produced. These chemicals break apart when they reach the stratosphere and release chlorine atoms that react with ozone and start the destruction that depletes the ozone.

CF 2 Cl 2 UV light CF 2 Cl Cl. N 2 O causes more NO x and NO x-induced ozone loss. CFCs are man made chemicals that are very stable in the atmosphere.

It is the depletion in ozone molecules as chlorine and bromine atoms come into contact with ozone in the stratosphere. The severe depletion of the Antarctic ozone layer known as the ozone hole occurs because of the special weather conditions that exist there and nowhere else on the globe. A class of widely used chemical coolants known as hydrofluorocarbons HFC contributes to ozone depletion by a small but measurable amount countering a decades-old assumption according to a new NASA study.

CFC molecules are extremely stable and they do not dissolve in rain. The amount of ozone in the atmosphere began to drop sharply in the 1980s. Since the early 1970s scientists observed reduction in stratospheric ozone and it was found more.

Credible scientific studies have substantiated that the cause of ozone layer depletion is human activity specifically human-made chemicals that contain chlorine or bromine. Reduced ozone levels as a result of. There is more than sufficient evidence for significant CFC-caused ozone depletion.

The very low temperatures of the Antarctic stratosphere create ice clouds called polar stratospheric clouds. The simultaneous rise of CFCs and free chlorine in the stratosphere coupled with a corresponding decrease in ozone have been. Causes of Ozone layer depletion.

The thinning is most pronounced in the polar regions especially over Antarctica. Ozone depletion A chemical destruction of the stratospheric ozone layer beyond natural reactions. Stratospheric ozone is constantly being created and destroyed through natural cycles.

CFC-11 causes more ClO x and ClO x-induced ozone loss. One of the major causes of ozone layer depletion is the chemical chlorofluorocarbons or CFCs. The primary cause of ozone-layer depletion is chlorofluorocarbons or CFCs.

Substances that deplete the ozone include insulating foams solvents and refrigerants. It is responsible for absorbing most of. The primary effect of these source gas changes is as follows.

The causes of the ozone hole are CFCs chlorine bromine free radicals etc. Ozone depletion is a major environmental problem because it. Cause of ozone depletion.

Chlorofluorocarbon CFC is an organic compound that contains only carbon chlorine and fluorine. The main cause of ozone depletion and the ozone hole is manufactured chemicals especially manufactured halocarbon refrigerants solvents propellants and foam- blowing agents chlorofluorocarbons CFCs HCFCs halons. Large amounts of lab evidence prove a number of pathways by which chlorine and bromine destroy ozone in carefully simulated stratospheric conditions.

The Connection between Ozone Layer Depletion and UVB Radiation. The ozone layer comprises a belt of ozone molecules located primarily in the lower stratosphere. This ozone layer protects many lives on the earth and filters out harmful UV radiation coming from the sun.

CH 4 causes ozone increases via photochemical production chemistry that occurs not only in the troposphere but also in the lower stratosphere the CH 4 effect in the upper stratosphere is. CFC reacts with ozone layer and it results in the depletion of ozone layer. Ozone depletion occurs when chlorofluorocarbons CFCs and halonsgases formerly found in aerosol spray cans and refrigerantsare released into the atmosphere see details below.

It is also enhanced in the presence of polar stratospheric clouds PSCs. ChloroflourocarbonsCFC are the big dog as far as causes of ozone depletion are concerned. CFCs are generally composed of carbon fluorine and chlorine.

This decrease has been linked to synthetic chemicals like chlorofluorocarbons CFCs which are used as refrigerants and in fire extinguishers. Human activity is the major factor in tipping that natural balance mostly from releasing artificial chemicals known as ozone-depleting substances ODS to the atmosphere. Up to 24 cash back Ozone depletion occurs by the release of chlorofluorocarbons and other ozone-depleting substances.

This compound does not get degraded by any biological process. The main reason for ozone layer depletion is believed to be the release of chlorofluorocarbon compounds CFCs also known as Freons. These polar stratospheric clouds are formed during the winter season when there is no.

Ozone-depleting substances are present throughout the stratospheric ozone layer because they are transported great distances by atmospheric air motions. Ozone Depletion The ozone depletion process begins when CFCs chlorofluorocarbons and other ozone-depleting substances ODS are emitted into the atmosphere. The main causes of ozone depletion or formation of ozone hole are manufactured chemicals especially halocarbon refrigerants solvents propellants and foam-blowing agents chlorofluorocarbons CFCs HCFCs halons referred to as ozone-depleting substances ODS.

These chemicals are widely known as ODS an acronym for Ozone-Depleting Substances. The main causes of ozone depletion and the ozone hole are manufactured chemicals especially manufactured halocarbon refrigerants solvents propellants and foam- blowing agents chlorofluorocarbons CFCs HCFCs halons referred to as ozone-depleting substances ODS. Ozone layer depletion is the thinning of the earths ozone layer gradually in the upper atmosphere due to the chemical compounds releasing in the atmosphere containing gaseous chlorine or bromine from human activities or industries.

CFCs generally dont react but only react with sunlight when it breaks down to release chlorine.

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