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