Ozone can be measured in various ways (by air sampling, by ground-based metrics, by satellite metrics, etc.). These various readings simply need to be taken daily or weekly for 1 year.
humans
Scientists have many theories. According to them, ozone was created by UV rays.
The ozone hole was discovered by Joe Farman. It was discovered in the year 1985.
Scientists collect the ozone concentration. This gives them an idea to check the thinning.
One of the factors contributing to the destruction of the ozone layer is the release of chlorofluorocarbons (CFCs) into the atmosphere. These chemicals break down ozone molecules when they reach the stratosphere, leading to ozone depletion.
Mario Molina was a scientist who discovered the ozone hole. He told that CFC's are the one causing the depletion.
Dr. Farman told that. he said we have hole in the ozone.
Ozone is disappearing. It is because of the increasing CFC's.
humans
Scientists have many theories. According to them, ozone was created by UV rays.
The ozone hole was discovered by Dr. Farman. He discovered it over Antarctica.
The ozone hole was discovered by Joe Farman. It was discovered in the year 1985.
Scientists did study ozone. But the one finding the depletion was Dr. Farman.
CFC's are partly responsible. They react with ozone and deplete it.
The ozone hole was discovered in the year in the year 1985 by the British scientist Joseph Farman.
Accouring to the scientists, the main cause of depletion of ozone layer is the use of CFc's. These CFCs react with ozone present in the ozone layer and deplete it.
All ozone does not change back into oxygen. It is because that ozone is continuously interacting with UV radiations.