Table Of Content :
- Introduction
- What Is Ozone layer?
- How Ozone Was Discovered?
- Formation/Creation/Structure Of Ozone Layer.
- Depletion/Destruction Of Ozone Layer.
- Some Basic Questions - Q 'n' A
- Terminology.
=> INTRODUCTION :
A layer Which Protects the living things from very dangerous and harmful solar radiation and ultraviolet rays coming from Sun.
A layer which Shields the earth as a protector.
What Is That "Layer"? LET'S UNDERSTAND.
=> WHAT IS OZONE LAYER ?
Ozone layer is a region in earth's stratosphere which ceases or absorbs the 97% - 99% harmful rays in itself coming from Sun to protect the earth from any damage.
=> HOW OZONE LAYER WAS DISCOVERED ?
- The various studies and researches on Sun Revealed that radiation coming from the Sun was ceased or absorbed by something in the atmosphere.
- The spectrum of the missing radiation was identical to only known chemical at that time called Ozone.
- And finally the ozone layer Was Discovered by Charles Fabry And Henri Buisson in 1913.
That's how the Ozone layer Was Discovered.
=> FORMATION/CREATION/STRUCTURE OF OZONE LAYER.
- When the rays coming from the Sun reflects on the Stratosphere, it breaks the chemical bond of oxygen molecule.This process is called Photodissociation.
- Consequently, Release single molecule of oxygen which layer join together with oxygen molecule and form ozone.
- The Ozone Layer Simply Made up Of 3 Atoms of Oxygen.
- The ozone layer form naturally but sometimes ,destroyed by the human Activities.
=> DEPLETION AND DESTRUCTION OF OZONE LAYER.
In 1976,th various researches showed that ozone layer got depleting due to release of chemicals by industries Mainly CFC.
| Introduction To CFC |
CFC Stands for chlourofluorocabons. It is made of 3 Atoms :
1. Carbon
2. Chlorine
3. Fluorin
CFC Mainly found in Refrigerator And plastic products Because :
1. Cheap
2. Don't catch fire easily
3. Usually not poisonous for living thing.
Harmful Gases Responsible for Ozone depletion :
- Nitric Oxide
- Nitrous Oxide
- Hydroxyl
- Chlorine
- Bromine
CFC Gases and Molecules are capable of surviving in the Stratosphere, which consequently breakdown the ozone layer and makes difficult for ozone to reform.
=> SOME BASIC QUESTIONS.
1. What Is The other name of ozone layer?
=> Ozonosphere.
2. What Is The Exact Location of Ozone layer ?
=> Lower Potion of Stratosphere or From where the Stratosphere Begins.
3. What Is the thickness of ozone layer?
=> Thickness of ozone layer is difficult to predict because it varies seasonally.
4. Who Discovered the ozone layer ?
=> Charles Fabry And Henri Buisson ,The French physicists In 1913.
5. What If the ozone layer doesn't exists?
=> Without this barriers in place, dangerous UV rays would reach The earth, damaging the DNA of plants Animals and human too.
=>TERMINOLOGY.
1. Ozone Hole :
A region of damaged or depleted area of ozone layer above the antarctic region.
2. Stratosphere :
It is the 2nd atmospheric layer as you go upward from earth's surface.Ozone is abundant here.
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