Talking about the hole in our ozone layer, we need to travel back to about 4 decades ago, or exactly on September 16 1987 when...
Talking about the hole in our ozone layer, we need to travel back to about 4 decades ago, or exactly on September 16 1987 when...
For a long time, we often heard the news that this earth is under the threats of depleting ozone layer. Ozone is a gas formed...