Inventions What toy was invented by Joshua Lionel Cowen around 1900? Electric train Raggedy Ann doll Yo-yo Tinkertoys Electric train Raggedy Ann doll Yo-yo Tinkertoys ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? Meghnad Saha Hargobind Khorana Benjamin Franklin J.J. Thompson Meghnad Saha Hargobind Khorana Benjamin Franklin J.J. Thompson ANSWER DOWNLOAD EXAMIANS APP
Inventions The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? James B. Conant Leslie R. Groves Vannevar Bush Robert Oppenheimer James B. Conant Leslie R. Groves Vannevar Bush Robert Oppenheimer ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention caused many deaths while testing it? Parachute Dynamite Ladders Race cars Parachute Dynamite Ladders Race cars ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1900s 1850s 1870s 1860s 1900s 1850s 1870s 1860s ANSWER DOWNLOAD EXAMIANS APP
Inventions What inspired reflecting road lights to be invented? The sun light on the windshield Car door reflecting mirrors The light a cat's eyes gave off on a fence Sun light on steel posts on road sides The sun light on the windshield Car door reflecting mirrors The light a cat's eyes gave off on a fence Sun light on steel posts on road sides ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS