Q. Which invention revolutionized the steel industry in the 19th century?

19वीं सदी में किस आविष्कार ने इस्पात उद्योग में क्रांति ला दी?

A
Bessemer Process
बेसेमर प्रक्रिया
B
Electric Arc Furnace
इलेक्ट्रिक आर्क फर्नेस
C
Open Hearth Furnace
चूल्हा भट्ठी खोलें
D
Basic Oxygen Process
बुनियादी ऑक्सीजन प्रक्रिया

Explanation

The Bessemer Process (1856) allowed mass production of steel by efficiently removing impurities, greatly reducing costs and fueling industrial growth.

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