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humans use products containing CFCs which accumulate in the atmosphere.
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What activities of man contribute to the depletion of ozone layer?
In the 1970s humans released CFCs into the atmosphere. It was used as a gas in aerosol cans, refrigerators and air conditioners. Production of CFCs was phased out after the Montreal Protocol in 1989. Scientists hope the ozone layer will be repaired around 2050.
What substitutes for CFCs came into being after scientists discovered that CFCs were harming the atmosphere?
Replacements for CFCs (dependding on use) included:HCFCsNitrogenAirPropane
How do you CFCs illustrate that technical knowledge can be a double edged sword?
1. CFCs help in refrigeration but destroy the ozone layer when released into the atmosphere
What human-made chemicals cause the ozone to deplete?
The human made chemicals that destroy the ozone are CFCs. These CFCs are ones that decompose the ozone molecules.
What are human activities produce chemials that destroy the ozone layer?
Humans create CFCs which are ozone depleting substances. They react with ozone present in ozone layer and deplete it.
What activities of man contribute to the depletion of ozone layer?
In the 1970s humans released CFCs into the atmosphere. It was used as a gas in aerosol cans, refrigerators and air conditioners. Production of CFCs was phased out after the Montreal Protocol in 1989. Scientists hope the ozone layer will be repaired around 2050.
What substitutes for CFCs came into being after scientists discovered that CFCs were harming the atmosphere?
Replacements for CFCs (dependding on use) included:HCFCsNitrogenAirPropane
How are cfcs released?
CFCs or chlorofluorocarbons are released when a device that holds it is leaking. Also some aerosols release CFCs into the atmosphere.
What is the protective layer of the atmosphere destroyed by CFCs?
ozone
What kind of effect do CFCs - chlorofluorocarbons - have on the atmosphere?
CFCs (chlorofluorocarbons) destroy the ozone layer allowing harmful radiation to reach the earth.
Humans have greatly increased the level of what in the atmosphere?
carbon dioxide
How do you CFCs illustrate that technical knowledge can be a double edged sword?
1. CFCs help in refrigeration but destroy the ozone layer when released into the atmosphere
What are human activities produce chemials that destroy the ozone layer?
Humans create CFCs which are ozone depleting substances. They react with ozone present in ozone layer and deplete it.
What human-made chemicals cause the ozone to deplete?
The human made chemicals that destroy the ozone are CFCs. These CFCs are ones that decompose the ozone molecules.
What do you called it destroys the atmosphere that surrounds the earth?
Global warming destroys the layer surrounding the Earth. The layer is called the ozone layer. Also, greenhouse gases and CFCs(chloroflorocarbons) contribute to destroying the ozone layer.
How has human pollution impacted the ozone layer?
Some gaseous products of human activity can reduce the about of ozone in the upper atmosphere, thus decreasing the effectiveness of the ozone layer in shielding the surface of the planet from ultraviolet radiation.
What effect do CFCs have on the Earth's stratosphere?
CFCs (Chlorofluorocarbons)What type of substance is it?CFCs are a class of man-made chemicals, generally non-toxic, non-flammable, chemically unreactive, colourless liquids or gases that evaporate easily. They are a group of ozone depleting substances. They damage the Earth's ozone layer, which protects the earth's surface from harmful ultra-violet radiation. CFCs are also powerful greenhouse gases which contribute to global warming.How is it released?Release to the atmosphere is primarily from CFC-containing aerosols, refrigeration equipment and some foams. There are no natural sources of CFCs.
