Inventions Which scientist discovered the radioactive element radium? Marie Curie Albert Einstein Isaac Newton Benjamin Franklin Marie Curie Albert Einstein Isaac Newton Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Turnip Townsend Potato Peterson Cabbage Carlson Swede Svenson Turnip Townsend Potato Peterson Cabbage Carlson Swede Svenson ANSWER DOWNLOAD EXAMIANS APP
Inventions What furniture item was invented by California furniture designer Charles Prior Hall in 1968? Captain's chair Sofa bed Waterbed Hammock Captain's chair Sofa bed Waterbed Hammock ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Barometer Hygrometer Bifocal spectacles Radio Barometer Hygrometer Bifocal spectacles Radio ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Jet propulsion Sonar Radar Ethyl gasoline Jet propulsion Sonar Radar Ethyl gasoline ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Joshua Rumble Charles Richter Giuseppe Mercalli Hiram Walker Joshua Rumble Charles Richter Giuseppe Mercalli Hiram Walker ANSWER DOWNLOAD EXAMIANS APP
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