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