The most polluted city in the world is :...

The most polluted city in the world is :

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The News items in each the question given below is to be classified one of the following four areas New Delhi the Capital of India is the most polluted city in the world when it comes to air quality.

With its very large population of vehicular traffic, Delhi is one of the most polluted cities of the world. Which of the following steps were taken by the government to reduce vehicular pollution in Delhi ? (i) Switching over the entire fleet of public transport i.e., buses, autorickshaws, from diesel to CNG (ii) Phasing out of old vehicles (iii) Use of unleaded petrol in vehicles (iv) Use of low sulphur petrol and diesel in vehicles (v) Use of catalytic converters in vehicles (vi) Application of stringent pollution level norms for vehicles such as Euro-II norms, etc.

Which of the following is the most populous city in the World?

In the 1990s among the 41 most polluted cities of the world, Delhi ranked

(a) A decade back, the enormous vehicular traffic in Delhi had made Delhi rank 4th among most polluted cities of the world. Two measures taken by the Delhi government brought marked improvement in air quality by 2005. What were these two measures and how did they reduce air pollution? (b) What is the norm set by Euro-II for petrol and diesel vehicles?

Most populous country of the world is:

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The most polluted city in the world is :
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