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प्रश्न
Release of oxides of nitrogen and hydrocarbons into the atmosphere by motor vehicles is prevented by using ______.
पर्याय
grit chamber
scrubbers
trickling filters
catalytic convertors
MCQ
रिकाम्या जागा भरा
उत्तर
Release of oxides of nitrogen and hydrocarbons into the atmosphere by motor vehicles is prevented by using trickling filters.
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