Inventions Who invented Gunpowder? Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the Raggedy Ann doll patented? 1919 1920 1911 1915 1919 1920 1911 1915 ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Hot air balloon Diving bell Rotary steam engine Steam boat Hot air balloon Diving bell Rotary steam engine Steam boat ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Robert Hooke Robert Koch Edward Jenner Louis Pasteur Robert Hooke Robert Koch Edward Jenner Louis Pasteur ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1900s 1870s 1850s 1860s 1900s 1870s 1850s 1860s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison Alfred B. Nobel Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
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