Which of the following gas causes a hole in the ozone layer?

Oxygen

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Chlorofluorocarbons

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Sulphur dioxide

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Carbon dioxide

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Solution

The correct option is B
Chlorofluorocarbons

CFCs(Chlorofluorocarbons) are the main cause of stratospheric ozone depletion. CFCs have a lifetime of about 20 to 100 years, one free chlorine atom from a CFC molecule can do a lot of damage, destroying ozone molecules for a long time.

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Similar questions

Which of the following is the main cause of global warming ?

(a) nitrogen dioxide

(b) sulphur dioxide

(d) ozone

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

Smog

Carbon monoxide

Nitrogen dioxide

Chlorofluorocarbons

Sulphur dioxide	a	1	Damage ozone layer
Carbon dioxide	b	2	Reduces the oxygen- carrying capacity of the blood
Carbon monoxide	c	3	Acid rain
Chlorofluoro-carbons	d	4	Greenhouse gas

Ozone layer depletion is caused due to ___.

(CFCs/methane/nitrogen oxides/sulphur dioxide)

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