What initiatives were taken for reducing vehicular air pollution

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 Multiple Choice QuestionsLong Answer Type

71. What measures, as an individual, you would take to reduce environmental pollution ?
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72. Discuss briefly the following :

(a) Radioactive wastes.

(b) Defunct ships and e-wastes.

(c) Municipal solid wastes.

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73. What initiatives were taken for reducing vehicular air pollution in Delhi ? Has the air quality improved in Delhi ?


Automobiles are the major sources of air pollution in Delhi. Measures that were taken to reduce vehicular air pollution are as follows.

1. Use of CNG (Compressed Natural Gas) for its public transport system.

2. Phasing out of old vehicles.

3. Use of unleaded petrol.

4. Use of low sulphur petrol and diesel.

5. Use of catalytic converter in vehicles.

6. Application of Euro II norms for vehicles.

Because of above mentioned steps taken up by the Government, the air quality of Delhi  improved with a substantial fall in carbon monoxide, oxides of sulphur and nitrogen level between 1997-2005.

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 Multiple Choice QuestionsShort Answer Type

74. Discuss briefly the following :

(a) Greenhouse gases.

(b) Catalytic converter

(c) Ultraviolet B

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75. Why is ozone layer in stratosphere called a protective layer ? Write a short note on the causes and effects of ozone depletion.
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 Multiple Choice QuestionsLong Answer Type

76. What is deforestation ? List the causes of deforestation.
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 Multiple Choice QuestionsShort Answer Type

77. Write about the contribution of Ahmed Khan to reduce the amount of plastic waste.
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 Multiple Choice QuestionsLong Answer Type

78. Write in brief about Montreal Protocol.
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79.

List all the wastes that you generate, at home, school or during your trips to other places. Could you very easily reduce the generation of these wastes? Which would be difficult or rather impossible to reduce?

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 Multiple Choice QuestionsMatch The Following

80.

Match the following

A. Catalytic converter (i) Particulate matter
B. Electrostatic precipitator (ii) Carbon monoxide and nitrogen oxides
C. Earmuffs (iii) High noise level
D. Earmuffs (iv) Solid wastes
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