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प्रश्न
The chemicals leading to the formation of ozone holes.
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उत्तर
Chloroflurocarbons/CFCs
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संबंधित प्रश्न
Fill in the following blank with suitable word :
Ultraviolet rays can cause skin..............
With the help of a flow diagram, describe how energy from the sun flows through various trophic levels.
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
Fill in the Blanks:
______ is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.
State how CFCs break ozone in the stratosphere.
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
The substance which is chiefly responsible for the depletion of ozone layer is ______.
In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of “X” to prevent the depletion of “Y”. “X” and “Y” respectively referred to here are ______.
Write the full form of CFCs.
Which one of the following is measured in Dobson units (DU)?
