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What is ozone layer and how is it protecting earth and how is it effected?
The ozone "layer" is a certain level of ozone naturally occurring in the atmosphere that softens the impact of the suns ultraviolet rays on earth. Several man-made pollutants - most noticeably chlorofluorocarbons - destroy a certain amount of the ozone layer, allowing more harmful amounts of ultraviolet to reach earth. Since the ban of chlorofluorocarbons some years back, the damage to the ozone layer has decreased, but it has not yet returned to it's normal level.
Describe the ozone layer after 5 years?
The ozone layer after 5 years is dependent on us. It depends how we use CFC's.
What is the size of ozone layer in recent years?
Ozone layer was depleted. It's size has been coming to normal in recent years.
Has the size of the hole in ozone layer changed in recent years?
The size of the ozone layer has changed. Due to the CFC's the ozone has decreased. Most of the loss has been over the poles.
If CFCs cannot be used what will happen to the ozone layer?
If CFC's cannot be used the ozone level will grow again in the next 60 - 120 years
How has the ozone layers changed?
The ozone layer has been decreased over the years. It is because of use of CFC's.
It is thought that life could not have existed on land until the ozone layer formed about 2 billion years ago. Why does life on land require an ozone layer?
Because the ozone layer provides a thin layer of protection from the harmful UV rays or ultraviolet rays.
Slogans for ozone layer depletion and its effects?
There have been hundreds of ozone layer slogans in the past several years. There are many groups who are concerned about damage to the ozone layer and their campaigns and strikes have brought the problem to the attention of many other people.
Is HAARP responsible for the holes in the ozone?
No, HAARP (High-Frequency Active Auroral Research Program) is not responsible for the holes in the ozone layer. The depletion of the ozone layer is primarily caused by human activities releasing chemicals like chlorofluorocarbons (CFCs) into the atmosphere. These chemicals break down ozone molecules, leading to thinning of the ozone layer.
Where was the ozone layer invented?
In the atmosphere. Hundreds of millions of years ago.
How has the ozone layer changed over time?
It was nonexistent before there was significant oxygen in the atmosphere. After the Great Oxidation Event, we developed our ozone layer, complete with annual ozone "holes" at each pole. We have evidence of sporadic events punching holes in the ozone layer from time-to-time. Since the 1700s, the ozone layer has been getting steadily thinner. This gets us to "current events".
When did ozone layer develop?
See "It is true that life could not have existed on land until the ozone layer formed about 2 million years ago Why does life on land require an ozone layer?" in the "Related questions" section below.
