Inventions When was the first lawn mower invented? 1849 1835 1830 1854 1849 1835 1830 1854 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1900s 1890s 1880s 1800s 1900s 1890s 1880s 1800s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who is the English physicist responsible for the 'Big Bang Theory'? George Gamow Albert Einstein Roger Penrose Michael Skube George Gamow Albert Einstein Roger Penrose Michael Skube ANSWER DOWNLOAD EXAMIANS APP
Inventions What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892? Ouija board Monopoly Ping Pong Frisbee Ouija board Monopoly Ping Pong Frisbee ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? George Fountain Lewis Edson Waterman Charles Kettering Sir William Grove George Fountain Lewis Edson Waterman Charles Kettering Sir William Grove ANSWER DOWNLOAD EXAMIANS APP
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