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प्रश्न
Automobile exhaust can be purified before its emission by using ______.
विकल्प
Catalytic converters
Scrubbers
Electrostatic precipitators
All of these
MCQ
रिक्त स्थान भरें
उत्तर
Automobile exhaust can be purified before its emission by using catalytic converters.
shaalaa.com
Controlling Vehicular Air Pollution: a Case Study of Delhi
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