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It is because of the CFC's. They react with ozone and deplete it.

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Q: If there is a drop in the amount of ozone in the upper atmosphere Why does this drop occur?
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Related questions

Why is it a good thing for the ozone layer to be in the upper atmosphere?

It is a good thing for the ozone to be in the upper atmosphere. It is due to the fact that ozone in upper atmosphere forms the ozone layer.


Which class ofchemical is linked to the decrease in the amount of ozone in the upper atmosphere of the earth?

carbon


What harmful effect is associated with the ozone hole in the upper atmosphere?

Ozone in upper atmosphere is not harmful. No harmful effects are associated with it.


Why is ozone found in upper atmosphere not a pollutant?

The ozone found in the upper atmosphere protects us from the UV rays. It is not a polluntant.


What is found in the upper atmosphere that protects us from uv rays?

Upper atmosphere contain various gases. However there is one which is very important for maintaining life on earth. It is called the ozone layer. It is a group of large amount of ozone molecules.


In what portion of the atmosphere is ozone depletion taking place?

Ozone depletion is occurring in the upper atmosphere.


Why is ozone described as hazardous at ground level but helpful in the upper atmosphere?

Ozone is described as hazardous at ground level but helpful in the upper atmosphere because at ground level, ozone is poisonous but, in the upper atmosphere, it protects us from the sun's radiation.


In the upper layer of the atmosphare ozone is formed by?

The upper layer of the atmosphere is formed by ozone layer. This is a layer of ozone gas.


What is the gas in the upper part of the atmosphere?

ozone


What is the upper part of the earths atmosphere?

ozone


What does ozone in the upper atmosphere do to UV Radiation?

Ozone layer does not convert UV rays. It absorbs them.


How is the ozone in the upper atmosphere is helpful too life on the earth?

Ozone in upper atmosphere absorbs the UV rays. These UV rays are fatal for life on earth.