The ozone hole is a repeating phenomenon, that has most likely occurred since there was ozone in the atmosphere (hundreds of millions of years). The size of the hole is the issue, whether Man plays any part in making it bigger.
Wiki User
∙ 14y agoWiki User
∙ 15y agoEver since the earth was made!!!!!!!!!!!!!!
Not a good answer. Ozone production is based on the presence of free oxygen in the atmosphere and the very early Earth didn't have any.
Wiki User
∙ 13y agoThe ozone hole only presents itself in the spring.
Remember that spring occurs in September in Antarctica
Wiki User
∙ 8y agoOzone layer was created long before humans. It was formed when the atmosphere was born.
Wiki User
∙ 7y agoIts been there since earth was created.
few days ago
The ozone layer developed around 2.4 billion years ago during the Great Oxidation Event in the Earth's history. This event marked a significant increase in oxygen levels in the atmosphere, leading to the formation of the ozone layer.
The ozone layer first appeared during the Proterozoic Eon, around 2 billion years ago. This protective layer of ozone formed when oxygen levels in the atmosphere increased, allowing ozone to form from oxygen molecules.
The ozone layer began to form in the Earth's atmosphere around 600 million years ago during the Proterozoic eon. It became more significant around 400 million years ago during the Devonian period due to the increase in oxygen levels.
The ozone layer only formed about 600 million years ago when there was already a diverse array of life on Earth. Dinosaurs went extinct around 65 million years ago due to a combination of factors, such as a large asteroid impact and volcanic activity, rather than a lack of protection from the ozone layer.
few days ago
The ozone layer developed around 2.4 billion years ago during the Great Oxidation Event in the Earth's history. This event marked a significant increase in oxygen levels in the atmosphere, leading to the formation of the ozone layer.
Ozone was created long ago. It was due to this fact humans were able to develop.
In the atmosphere. Hundreds of millions of years ago.
The ozone layer began to form in the Earth's atmosphere around 600 million years ago during the Proterozoic eon. It became more significant around 400 million years ago during the Devonian period due to the increase in oxygen levels.
Because the ozone layer provides a thin layer of protection from the harmful UV rays or ultraviolet rays.
The ozone layer only formed about 600 million years ago when there was already a diverse array of life on Earth. Dinosaurs went extinct around 65 million years ago due to a combination of factors, such as a large asteroid impact and volcanic activity, rather than a lack of protection from the ozone layer.
Right after the Great Oxidation Event, when the ozone layer first formed. About 500 million years ago.
Life on earth requires an ozone layer. It is because it absorbs the fatal UV rays of the sun.
The sun naturally gives off radiation through ultraviolet rays but the ozone layer around earth blocks most of the harmful radiation, a few years ago people using spray-cans with CFC's in them (chlorofluorocarbons) created a hole in the ozone layer over the arctic CFC's were banned but they did their damage.
Scientists believe that the ozone layer is disappearing because there is a large hole in it. This hole was not there years ago.
Candles Long Ago was created in 1994.