Inventions Who invented Jet Engine? Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? C. Birdsey F. Rozenosh G. Findus R. Scott C. Birdsey F. Rozenosh G. Findus R. Scott ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Burglar alarm Pay telephone Automatic teller machine Time-lock safe Burglar alarm Pay telephone Automatic teller machine Time-lock safe ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Cabbage Carlson Turnip Townsend Swede Svenson Potato Peterson Cabbage Carlson Turnip Townsend Swede Svenson Potato Peterson ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Sir Alexander Graham Bell Alfred B. Nobel Michael Faraday Thomas Alva Edison Sir Alexander Graham Bell Alfred B. Nobel Michael Faraday Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
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