Inventions What invention caused many deaths while testing it? Parachute Ladders Dynamite Race cars Parachute Ladders Dynamite Race cars ANSWER DOWNLOAD EXAMIANS APP
Inventions What treat was invented by 11-year-old Frank Epperson in 1905? Banana split Cotton candy Cracker Jacks Popsicle Banana split Cotton candy Cracker Jacks Popsicle 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? Leslie R. Groves Robert Oppenheimer Vannevar Bush James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush James B. Conant ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Heater Electric Drill Electric Fence Electric Shaver Electric Heater Electric Drill Electric Fence Electric Shaver ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? J.J. Thompson Benjamin Franklin Hargobind Khorana Meghnad Saha J.J. Thompson Benjamin Franklin Hargobind Khorana Meghnad Saha ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1870s 1850s 1900s 1860s 1870s 1850s 1900s 1860s ANSWER DOWNLOAD EXAMIANS APP
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