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प्रश्न
Automobile exhaust can be purified before its emission by using ______.
पर्याय
Catalytic converters
Scrubbers
Electrostatic precipitators
All of these
MCQ
रिकाम्या जागा भरा
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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