Which steps were taken in Delhi to reduce pol | vedclass

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(B) To control vehicular air pollution in Delhi,several measures were implemented:$1$. Phasing out of old vehicles $(I)$ helps reduce emissions from o

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$I, III, IV, V$

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(B) To control vehicular air pollution in Delhi,several measures were implemented:$1$. Phasing out of old vehicles $(I)$ helps reduce emissions from outdated engines.$2$. Use of low-sulphur petrol and diesel $(III)$ reduces the emission of sulphur dioxide.$3$. Use of catalytic converters $(IV)$ in vehicles helps convert toxic gases like carbon monoxide and nitrogen oxides into less harmful substances.$4$. Application of stringent pollution level norms $(V)$ (e.g.,Bharat Stage norms) ensures that vehicles meet specific emission standards.$5$. The use of leaded petrol $(II)$ is incorrect because leaded petrol is a major source of air pollution and was banned to reduce toxicity. Therefore,the correct steps are $I, III, IV,$ and $V$.

Which steps were taken in Delhi to reduce pollution from vehicles?
$I-$ Phasing out of old vehicles
$II -$ Use of leaded petrol
$III -$ Use of low-sulphur petrol and diesel
$IV -$ Use of catalytic converters in vehicles
$V -$ Application of stringent pollution level norms for vehicles

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Which steps were taken in Delhi to reduce pollution from vehicles?$I-$ Phasing out of old vehicles$II -$ Use of leaded petrol$III -$ Use of low-sulphur petrol and diesel$IV -$ Use of catalytic converters in vehicles$V -$ Application of stringent pollution level norms for vehicles