railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) General Knowledge Science Technology and Inventions

"डायनामाइट" चा शोध कोणी लावला?

1
थॉमस अल्वा एडिसन
2
बेंजामिन फ्रँकलिन
3
रुडॉल्फ डिझेल
4
आल्फ्रेड नोबेल
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