Inventions Who invented Gunpowder? Leo H Baekeland Roger Bacon Sir Frank Whittle G. Ferdinand Von Zeppelin Leo H Baekeland Roger Bacon Sir Frank Whittle G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
Inventions When was Milk Tray first introduced? 1923 1934 1942 1915 1923 1934 1942 1915 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1950s 1960s 1980s 1940s 1950s 1960s 1980s 1940s ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? F. Rozenosh C. Birdsey G. Findus R. Scott F. Rozenosh C. Birdsey G. Findus R. Scott ANSWER DOWNLOAD EXAMIANS APP
Inventions In which year was MIDI introduced? 1987 1977 1983 1973 1987 1977 1983 1973 ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Steam boat Diving bell Hot air balloon Rotary steam engine Steam boat Diving bell Hot air balloon Rotary steam engine ANSWER DOWNLOAD EXAMIANS APP
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