Question

Meaning of Ozone Layer Depletion. Effects of Ozone Layer Depletion. Measures to protect Ozone Layer Depletion. 

Answer 1

Ozone Layer Depletion 

Meaning 

Ozone Layer is one of the major problems for the atmosphere. This ozone layer sustains life on earth by absorbing a great deal of ultra violet light radiating out of Sun. if all of this light Falls over the Earth surface without being absorbed by the Ozone Layer, it will cause sunburn and will lead to death. Early 1960s scientists established that an Ozone hole has occurred in the stratospheric Ozone Layer over Antarctica.

Ozone is a pale blue gas mainly present in the stratosphere in the form of a layer known as Ozonospare. The Ozonospare  act as an absorbent of all harmful radiations coming from the sun and space and hence behaves as a protective umbrella for the living organisms on earth. In the absence of Ozone Layer, all the dangerous UV rays and cosmic rays will enter into atmosphere and cause damage to living organisms.

Effects of Ozone Layer Depletion

Ozone is a form of oxygen that is present in the earth's atmosphere in a small quantity. Its presence in the lower atmosphere closer to earth contributes to air pollution and causes damage to Human tissues but its presence in the outer reaches of the earth's atmosphere is absolutely vital to life.

The following are the some harmful effects - 

(1)- Increase in solar UV - B radiation adversely affects a number of important biological systems.

(2)- Depletion of Ozone layer has resulted in many skin related diseases. Melanoma, the particular form of skin cancer is reported in many areas. 

(3)- It reduces the crop productivity.

(4)- The depletion of Ozone layer will induce eye cancer in the animals.

(5)- The depletion of Ozone layer leads to loss of various plants from terrestial and aquatic habitats.

(6)- Due to it UV radiation may cause greenhouse effect.

(7)- Ozone enters the body during breathing that causes lung disorders in human beings.

Measures to protect Ozone Layer Depletion

The following are some measures to tackle the ozone layer Depletion problem-

(1)- The use of plastic should be banned in the country.

(2)- The production and use of CFCs should be banned.

(3)- The use of CFCs in aerosol, spray cans, eggs crates should be banned and their substitute should be used.

(4)- New technologies should be adopted to recapture the CFCs released from the air conditioners and refrigerators.

Conclusion

Ozone in Ozone Layer is formed by absorption of certain radiations in the upper atmosphere by oxygen. Due to such and absorption, atmospheric oxygen gets dissociated and subsequently combines with molecular oxygen of the upper atmosphere, thereby producing ozone.

Ozone Layer is very important for human beings as well as the protection of earth. Located 30 km above from the surface of the earth, It provides a shield against the lethal ultraviolet rays of the Sun. If these rays penetrate the ozone layer, life would not be possible on the earth.

United Nations General Assembly designated 16 September as The International Day for the preservation of the Ozone Layer. 

Thinning of Ozone Layer present in the atmosphere is known as Ozone Layer Depletion.