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प्रश्न
Name the following pollutants:
Any two chemicals leading to the formation of ozone holes.
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उत्तर
- Bromochlorodifluoromethane
- chlorofluoromethane
संबंधित प्रश्न
The harmful radiations absorbed by the ozone layer are ______.
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
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
Briefly explain depletion of ozone layer and its effects.
Explain what is smog. Give its effects.
State the chemicals responsible for ozone layer destruction.
Select the correct answer from the following statement:
The gas which in presence of U.V. light gives two atoms of the same gas.
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 ______.
World Ozone day is celebrated on ______.
