Which gas destroy the ozone layer?

Answer 1

The thinning of the Southern Hemisphere's ozone layer that occurs each year is due to a lack of sunlight hitting this region. The worst "hole" that we know of occurred in 1838 due to high solar activity. There are some groups that believe that cfc's are reaching this layer and causing some issues. The problems with this concept is the levels of cfc's in the atmosphere and the location and reason for the thinning of the layer.

The group of gases that are known to degrade ozone *when sunlight strikes them*, are molecules that contain chlorine or bromine. Sunlight (less energetic than UV-B) breaks off the chlorine or bromine, they end up creating an ozone decay path, and the sunlight reactivates them.

Water vapor alone, without sunlight, will destroy ozone, and reset spontaneously to destroy ozone.

So the only "group" that contains both is "ozone depleting substances".

Answer 2

Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are gases that destroy the ozone layer. When released into the atmosphere, they break down ozone molecules and contribute to ozone depletion.

Answer 3

Water vapor, any gas with a carbon-carbon double bond, and any gas with a less-than-fully-oxidized sulfur. Additionally, there are other compounds that can accept the extra oxygen for some period of time, but are otherwise unaffected when the interchange is complete (catalytic decay). CFCs are an example of the latter.

Mainly Chloroflurorocarbons (CFC's)
See the related questions section below.

Answer 4

The main gases causing ozone layer depletion are:

• water vapor (Nature and Man),
• CFC's (ChloroFluoroCarbons, Man),
• halons (Man),
• carbon tetrachloride and methylchloroform (found so far in increasing amounts at lower altitudes, Nature and Man), and
• bromine oxide (volcanos), and bromine from manmade sources.

Answer 5

It's a small group of gasses (all of them similar) that are collectively called "chlorofluorocarbons". Mostly, they were used as refrigerants.
Manmade chemicals like chlorofluorocarbons, bromofluorocarbons and water vapor the major depleters of the ozone layer.

Answer 6

Chlorofluorocarbons used to be destroying the ozone layer and creating an ozone hole (until it was banned).

Answer 7

CFC's destroy ozone. They react with ozone to deplete it.

Answer 8

Greenhouse gases are destroying the ozone layer. They also cause greenhouse effect.

Answer 9

Greenhouse gases are the ones. They react with ozone to deplete it.

Answer 10

The CFC's destroy ozone layer. These are synthetic gases of earth. They are manufactured as refrigerants.