The ozone depletion is worst at the poles. It is due to the low temperature there. The Polar Stratospheric Clouds are formed at the poles.
The ozone depletion is caused due to various natural and man made factor. Worst of them is the man made CFC's. These are compounds that react with ozone in the ozone layer and deplete it.
Poles is the worst area for ozone depletion. It is because of the low temperatures there.
The substances that are causing ozone layer depletion are freons, CFC's etc.. These are called as ozone-depleting substances (ODS).
Ozone depletion is not worse in cities. If you measure the effects of ozone depletion by the number of people affected, there are more people per unit area in cities. Ozone depletion affects every unit area more-or-less equally. Ozone pollution affects cities worst, since NOx is mostly produced by urban and suburban<->urban traffic.
It causes harmful activities like skin cancer, cataracts. Mainly children are worst affected. It is also harmful for eyes.
Ozone depletion occurs in the ozone layer.
Ozone depletion is the depletion of ozone molecules. It is happening because of CFC's.
The major cause of ozone depletion is the reaction of CFC with ozone. They decompose ozone and cause its depletion.
The ozone is worst at the poles. It is because depletion occurs in low temp only.
Ozone depletion refers to the depletion of ozone molecules. These molecules are present in the ozone layer.
The solution for ozone depletion is curbing CFC's. They could prevent ozone depletion.
Ozone depletion is due to CFC's. They react with ozone to deplete it.