Q74) How are Green House Effect and Ozone layer depletion related?
i) Greenhouse effect causes ozone layer depletion
ii) Ozone layer depletion causes greenhouse effect.
iii) There is no relation between the two phenomena.
iv) Chlorofluorocarbons are one of the culprits in both the cases.
Which of the above statements are true?
c) iii and iv only
C)
Explanation:
CFCs are responsible for ozone layer depletion, as they react with ozone, and are also greenhouse gases because they absorb the heat emitted from the earth. This responsibility is the only thing these two issues have in common – they are very different phenomena, based on different principles.
The greenhouse effect and ozone layer depletion are two independent phenomena. They do not influence or affect one another.Ozone layer depletion does not cause the greenhouse effect. It allows more ultraviolet energy to reach the Earth’s surface, but it does not affect the absorption of heat inside the atmosphere.Ozone layer depletion cannot cause any increase in the Earth’s temperature.CO2, which is the main greenhouse gas, whose concentration in the atmosphere is increasing due to human activity, does not cause any depletion of the ozone layer.