General Knowledge · Inventions and Discoveries
निम्नलिखित में से किसका आविष्कार अल्फ्रेड नोबेल द्वारा किया गया था?
- 1रेडियो
- 2डायनामाइट✓
- 3रेडियम
- 4डायनेमो
सही उत्तर देखें
डायनामाइट
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