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प्रश्न
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
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उत्तर
Ozone present in the stratosphere is called as good ozone as this ozone absorbs UV rays from the sun which is harmful to living organisms. DNA and proteins of living organisms absorb UV rays and its high energy breaks down the chemical bonds within these molecules. This causes damage to skin cells and skin cancer of different types. A high dose of UV-B causes inflammation of the cornea called snow-blindness cataracts. This all is prevented by this stratosphere ozone as it absorbs UV rays.
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संबंधित प्रश्न
What is the function of ozone in the upper atmosphere?
What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
(a) BHC
(b) DDT
(c) CFC
(d) UNEP
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
“Damage to the ozone layer is a cause of concern”. Justify this statement.
Briefly explain depletion of ozone layer and its effects.
Fill in the Blanks:
The ______ is the layer of the atmosphere that contains the protective ozone layer
A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?
World Ozone day is celebrated on ______.
Which one of the following is measured in Dobson units (DU)?
