Science, asked by rahul139, 1 year ago

what do you mean by ozone hole. what are the varies cause and harmful effect of ozone hole?

Answers

Answered by akira4
2
They also noticed ozone depletion in larger amounts over the two poles of the earth, which is known as the ozone hole.
# the harmful effects of ozone hole are :
The destruction of ozone layer is caused by one factor only which is Cholorofluorocarbons.

The main cause of the ozone hole was found to be gases that contained Cholorofluorocarbons (CFCs), Halons and Freons. Found commonly in aerosol cans and released by many electronic appliances, these were seen to decrease the level of ozone in the stratosphere. All of these gases contain chlorine, which is a major cause behind the thinning of the ozone layer.

The presence of chlorine within CFC’s break down the ozone gases in ozone layer which increases the chances of ozone depletion. Till date, CFC’s have accounted for about 80% of ozone depletion.

The destruction of the ozone layer is primarily caused when the amount of gases that contain chlorine begins to increase in the environment. As these gases rise upwards, they are exposed to UV light. This then causes a chemical reaction which creates chlorine atoms. These affect the atoms of ozone and cause ozone depletion.

Although the process has been taking place for several years, the ozone layer was repairing itself naturally.

With the marked increase in the emission of these gases, the ozone hole above Antarctica is becoming a permanent part of the layer. Even though the damage is reversible, it will require several decades and a major reduction in the emissions.
Answered by Anonymous
2
Ozone is layer in the stratosphere whuch prevent the earth from harmful unltraviolet rays from sun.But nowdays it is depleting due to the excessive use of some green house gases like CFC( chloroflorocarbons and various other gases so a whole has become in it.
HARMFUL EFFECTS OF OZONE WHOLE.
The UV rays from sun causes skin cancer and eye infections in humans.
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