Assertion- Ozone is destroyed by CFCs in the upper stratosphere- Reason- Ozone holes increase the amount of UV radiation reaching the earth- nbsp-Assertion and reason are incorrectAssertion is false- but the reason is correctAssertion and reason are both correct- and the reason is the correct explanation for the assertionAssertion and reason are correct- but the reason is not the correct explanation for the assertion

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Assertion: Oz...

Question

Assertion: Ozone is destroyed by CFCs in the upper stratosphere.
Reason: Ozone holes increase the amount of UV radiation reaching the earth.

Assertion and reason are incorrect

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Assertion is false, but the reason is correct

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Assertion and reason are both correct, and the reason is the correct explanation for the assertion

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Assertion and reason are correct, but the reason is not the correct explanation for the assertion

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Solution

The correct option is D Assertion and reason are correct, but the reason is not the correct explanation for the assertion
The upper stratosphere consists of ozone ( $O_{3}$ ), which shields the harmful ultraviolet (UV) radiations coming from sun. The layer get depleted by certain substances like chlorofluorocarbons (CFCs) and hydrofluorocarbons (HFC) etc.

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Similar questions

Q. Assertion : UV radiation causes photodissociation of ozone into

O_{2}

and O. Thus causing damage to the stratospheric ozone layer.

Reason : Ozone hole is resulting in global warming and climate change.

Regarding the assertion and reason, choose the correct option.
Assertion [A]: UV radiation causes photo-dissociation of ozone into O₂and O causing damage to the ozone layer.
Reason [R]: The ozone hole has been the major cause of global warming and climate change.

Read the given assertion and reason and choose the correct option.
Assertion [A]: UV radiation causes the photo-dissociation of ozone into O₂and O, thus causing damage to the ozone layer.
Reason [R]: The ozone hole has been the major cause of global warming and climate change.

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Deforestation is one main factor contributing to global warming.
Reason [R]: Besides,

C O_{2}

, methane and CFCs are also greenhouse gases.

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Assertion: Ozone is destroyed by CFCs in the upper stratosphere. Reason: Ozone holes increase the amount of UV radiation reaching the earth.

Assertion: Ozone is destroyed by CFCs in the upper stratosphere.
Reason: Ozone holes increase the amount of UV radiation reaching the earth.