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Why earlier CFC emmision were less?
CFC was not introduced earlier. So emission were zero.
Why does the ozone hole happen?
The ozone hole happened when CFC's introduced. It caused due to depleting property of CFC's.
Which gas is used instead of CFC in Refrigerators now-a-days?
LPG - Liquid propane gas or other Hydrocarbon derivatives... Soft CFC's, they added hydrogen to the CFC's previously used that were called hard CFC's. By doing this it won't allow the CFC's to travel up to the stratosphere, where it breaks down the ozone. With the added hydrogen will stop it in the troposphere and combine to form compounds such as CO2 + HCl (or HF), therefore not harmful to the ozone. Examples CH2Cl (HCFC-22) or CHCl2-CF2 (HCFC-123)
When was the first airplane introduced?
The first airplane was introduced about 1897.
When and by whom were the cfc created?
Chloroflourocarbons were first created in 1928 as non-toxic, non-flamable refrigerants, and were first produced commercially in the 1930's by DuPont. The first Chlorofluorocarbon was CFC-12, a single carbon with two chlorines and two Fluorines attached to it.
When was melodrama first introduced?
it was introduced in 1923
When were cattle first introduced to Australia?
Cattle were first introduced with the First Fleet in January 1788.
Where was the first camcorder introduced?
The first camcorder was introduced around 1982 by JVC.
When was the factory act first introduced?
The factory act was first introduced in 1833.
When and where is the reader first introduced to Scrooge?
He is introduced in the first page of Stave one.
What is the interaction of CFC and stratospheric ozone?
CFC and ozone interact often. Here CFC's deplete ozone.
What is role of CFC in refrigerator?
CFC is filled in the refrigerator and the process of compression , condensation and evaporation is because of CFC.....
