Inventions Who invented Gunpowder? Roger Bacon Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin Roger Bacon Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bakelite? Charles Goodyear Henry Ford Roy Plunkett Leo Hendrik Baekeland Charles Goodyear Henry Ford Roy Plunkett Leo Hendrik Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? Sir Frank Whittle Kirkpatrick Macmillan John J. Loud Lewis E. Waterman Sir Frank Whittle Kirkpatrick Macmillan John J. Loud Lewis E. Waterman ANSWER DOWNLOAD EXAMIANS APP
Inventions Where was the yo-yo invented? England Philippines United States France England Philippines United States France ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Disposable diaper Infant carrier Bottle warmer Baby monitor Disposable diaper Infant carrier Bottle warmer Baby monitor ANSWER DOWNLOAD EXAMIANS APP
Inventions The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name? John Christopher Ballantyne John Christopher Baxter Jack Croxford Baker Joseph Cyril Bamford John Christopher Ballantyne John Christopher Baxter Jack Croxford Baker Joseph Cyril Bamford ANSWER DOWNLOAD EXAMIANS APP
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