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Why hasn't the ozone layer repaired itself fully since the ban?
Wiki User
∙ 12y ago
- CFCs, the chlorofluorocarbon gases that destroy the ozone, remain active in the atmosphere for 50 to 75 years.
- The chlorine molecule that detaches from the CFC to attack the ozone emerges from the encounter unscathed and lives to fight another day.
- CFCs also take about ten years to rise up to the lower stratosphere, where the ozone layer is.
All these reasons are why scientists hope that the ozone layer will have repaired itself fully by the year 2060.
Wiki User
∙ 12y ago
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Can the hole of the Ozone Layer be repaired?
The ozone hole can be repaired by curbing the use of CFCs. If there are no man made ozone destroying substances, the ozone layer will replenish itself.
Why hasn't the ozone layer repaired itself?
Ozone does repairs itself and replenishes. But when rate of destruction is more then it destroys.
Has ozone layer hole been repaired?
The ozone hole has not yet being repaired. It is on the path of improving.
Has the ozone layer recovered since the ban?
Yes it has. ban on ozone has repaired the ozone layer.
Has man repaired the ozone layer?
Man has depleted the ozone layer. He has done this by continues usage of CFC's.
How can you prevent depletion of the ozone layer?
The ozone layer is no longer being damaged. CFCs (chlorofluorocarbons) used in aerosols and fridges during the 20th century damaged the ozone layer and these chemicals will stay in the atmosphere for another 50 years. The 1987 Montreal Agreement meant that all countries in the world agreed to stop using these chemicals. The ozone layer should have repaired itself by 2060.
What effect do air conditioning gases have on the ozone layer?
The gas that used to be used in air conditioners and refrigerators, freon, or chlorofluorocarbons (CFCs) would damage the ozone layer. Chlorine would separate from the gas and attack the ozone molecules. These gases are no longer used in air conditioning units. If no further damage occurs the ozone layer will have repaired itself by 2060.
What can countries do to help the ozone layer recover?
They can get together and agree to stop producing CFCs (chlorofluorocarbons). They did this already in Montreal in 1987, and the ozone layer is now healing itself and scientists hope if will be fully recovered by 2050, if we don't discover another destroying chemical.
What level of the OSI creates packets?
Some textbooks say that the packet is fully created when it reaches the physical layer, although the actual final construction is layer 2 (Data link layer). Then again, some textbooks will say that the packet is fully created in layer 2 and is transmitted out the physical layer as a frame.
What still needs done to the ozone layer?
Ozone needs to be repaired. For this we need to stop using CFC's.
What are people doing to control the ozone?
The 1987 Montreal Protocol got all countries to agree to phase out chlorofluorocarbons (CFCs) which were then used in aerosol sprays and refrigeration. Chlorine from CFCs destroyed ozone in the ozone layer which led to the weakening of the layer. Now in 2012 scientists believe that ozone seems to be no longer being destroyed, but it will take up to 2060 before the ozone layer has repaired itself.
At what layer a NIC identifies itself using the MAC address?
Data Link Layer...
