1.

What are the Effects of UV rays?

Answer»

Effects of UV rays: 

  • UV radiations shorter than UV-B are almost completely absorbed by Earth‘s atmosphere, if the ozone layer is intact.  
  • DNA and proteins of living organisms are damaged by UV rays as they potentially absorb it. 
  • The high energy of UV rays breaks the chemical bond in these molecules. 
  • UV – B damages DNA and mutation may occur. 
  • It causes ageing of skin.
  • Damage skin cells and causes skin cancers. 
  • In human eye cornea absorb UV – B radiation and high dose of UV – B causes inflammation of cornea called snow-blindness, cataract etc. 
  • Such exposes may damage cornea. 


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