English Essay, Paragraph, Speech on “World Ozone Day – 16th September” Complete Essay for Class 8, 9, 10 and 12 Students for Exam.

World Ozone Day – 16th September

World Ozone Day is celebrated on 16th Sep to highlight the dangers of depleting the ozone layer of the atmosphere. This gas covers the atmosphere and acts as a shield to the world from penetrating the sun’s harmful ultraviolet radiation to the earth’s surface. These harmful rays are reflected back to the space by the ozone layer for the sake of living being. Rowland and Mario Molina in 1973 established that industrial chemicals called chlorofluoro Carbons (CFCs) were eating away the upper ozone layer. The CFCs are pumped into air conditioners and refrigerators and leaks out directly into the air A CFC is transparent, which means it doesn’t absorb visible radiation and doesn’t rain out because it is insoluble in water. Thus it is inert. But when it reaches into the stratosphere, the upper part of the atmosphere, it encounters a different kind of solar radiation of energetic ultraviolet rays that is absorbed by the ozone layer. Thus an ozone hole, called black hole is created. Through this whole, ultraviolet radiation can enter into the earth’s surface and a number of hazards might take place. Scientists speculate that many types of diseases may occur.

Thus in 1989, the United States and the 12 nation European community agreed to try to get a total ban on CFCs.

Hence by observing the Ozone Day, we became cautious and knew the importance of ozone layer enriching our atmosphere.

“Ozone layer is a shield, Don’t make a hole in it.”