They did it in 1880. It is a layer of ozone molecules.
The ozone hole was discovered by Joe Farman in 1985. They discovered it in the month of May.
Scientists hope the ozone layer will have recovered by around 2050.
See "What does the ozone layer do?"
The ozone layer has a hole.It was proven by scientists.
The scientists send up the balloons to see where the ozone has gone. It is because they want to know where the ozone is most depleted.
People did not discover about it, scientists did. They did it in 1985.
Scientists notices the UV rays. It gave them the idea about the ozone hole.
The ozone hole was discovered by Joe Farman in 1985. They discovered it in the month of May.
There is an ozone layer. Scientists have confirmed that.
Scientists hope the ozone layer will have recovered by around 2050.
Ozone is present in the stratosphere of the earth's atmosphere. It is in this region that the scientists are concerned.
See "What does the ozone layer do?"
Scientists are concerned about the ozone hole. They are trying to ban the CFC's over the world.
Scientists are able to track ozone hole. New technology has enabled them to do so.
The scientists have discovered ozone hole due to technology. Advancements led them to find it.
He didn't. He discovered and named ozone.
Yes, he did. he discovered the ozone hole.