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प्रश्न
Air-conditioning was invented by
विकल्प
Carrier
Voltas
A. Volta
Sinclair
MCQ
उत्तर
Carrier
Explanation: Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by American inventor Willis Carrier
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Static General Knowledge (Entrance Exam)
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