Principal cause of ozone depletion is the :

presence of fluorocarbons

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acid rain

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photochemical smog

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green-house effect

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Solution

The correct option is C presence of fluorocarbons
CFCs and other contributory substances are referred to as ozone-depleting substances(ODS).
Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide.

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Similar questions

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?

Which of the is responsible for depletion of ozone layer? Options are :-

Smog

Carbon monoxide

Nitrogen dioxide

Chlorofluorocarbons

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