how is ozone formed in the upper atmosphere? state it's importantance what is responsle is it depletion?write on harmful effect of ozone layer?
Answers
Answer:
Ozone is formed in the atmosphere when energetic ultraviolet (UV) radiation dissociates molecules of oxygen (O2) into separate oxygen atoms. ... This depletion results in exposure of the earth's surface to the UV rays causing skin cancer incidents and harms to the plants.
Answer:
Ozone is formed in upper atmosphere by the reaction of ultraviolet UV radiations on oxygen O2 molecule. The damage to ozone layer is a cause of concern to us as due to its damage more ultraviolet rays reach the earth's surface causing various health hazards.
Most ozone resides in the stratosphere (a layer of the atmosphere between 10 and 40 km above us), where it acts as a shield to protect Earth's surface from the sun's harmful ultraviolet radiation. With a weakening of this shield, we would be more susceptible to skin cancer, cataracts and impaired immune systems.
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere. CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.
Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
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