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