Question
Regarding the assertion and reason, choose the correct option.
Assertion [A]: UV radiation causes photo-dissociation of ozone into O2 and O, thus causing damage to the ozone layer.
Reason [R]: The ozone hole has been the major cause of global warming and climate change.
Assertion [A]: UV radiation causes photo-dissociation of ozone into O2 and O, thus causing damage to the ozone layer.
Reason [R]: The ozone hole has been the major cause of global warming and climate change.
Answer: Option D
:
D
UV radiation does not cause photodissociation of ozone into O2 and O.Instead, it takes part in the formation of ozone in two steps.
O2---> O + O
O2+ O ---> O3
Due to certain carelesshuman activities, the ozone layer in the stratosphere has beenthinning down in certain areas, which are beingknown as"ozone hole". The ozone hole has beenresulting in rain failure, increased incoming radiation, cancers and a reduction in crop production. Global warming and climate changes are mainly caused due to an increase in the amounts of greenhouse gases in the atmosphere.
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:
D
UV radiation does not cause photodissociation of ozone into O2 and O.Instead, it takes part in the formation of ozone in two steps.
O2---> O + O
O2+ O ---> O3
Due to certain carelesshuman activities, the ozone layer in the stratosphere has beenthinning down in certain areas, which are beingknown as"ozone hole". The ozone hole has beenresulting in rain failure, increased incoming radiation, cancers and a reduction in crop production. Global warming and climate changes are mainly caused due to an increase in the amounts of greenhouse gases in the atmosphere.
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