Important Inventions and Discoveries in World » Exercise – 1
86. Who invented Gunpowder?
(a) G. Ferdinand Von Zeppelin
(b) Sir Frank Whittle
(c) Roger Bacon
(d) Leo H Baekeland
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| Exam Name : UPSC, SSC, KVS, NVS, IBPS, RBI, SBI, RRB |
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