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प्रश्न
Is ozone depletion related to global warming?
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उत्तर
Ozone depletion and global warming are separate problems, though some agents contribute to both. Chlorofluorocarbons (CFCs) are the principle cause of ozone depletion, but they also happen to be potent heat-trapping gases. Still, CFCs are responsible for less than 10 per cent of total atmospheric warming, far less than the 63 percent contribution of carbon dioxide. Thus, attention paid to CFCs has been on their ozone depletion role. This will change as CFCs are phased out and replaced by hydro chlorofluorocarbons (HCFCs) and hydro fluorocarbons (HFCs such as R-134a). These chemicals have little or no effect on the ozone layer but are strong heat-trapping gases. As their concentration in the atmosphere is already rising, the likely net effect in the future is that reductions in the CFC-related contribution to global warming will be offset by the presence of HCFCs and HFCs
संबंधित प्रश्न
How does ozone affect any ecosystem?
Write the full name of CFC.
State the chemicals responsible for ozone layer destruction.
Which Gas is present in large amount in the upper part of stratosphere.
Give balanced equations for formation of ozone molecules from oxygen molecules. What type of reaction takes place, during the formation.
Give reason for the following:
The formation of ozone involves a chemical reaction called photolysis.
The substance which is chiefly responsible for the depletion of ozone layer is ______.
Acid rain is caused by the oxides of ______.
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?
Depletion of ozone is mainly due to
