Inventions Who invented Gunpowder? G. Ferdinand Von Zeppelin Roger Bacon Sir Frank Whittle Leo H Baekeland G. Ferdinand Von Zeppelin Roger Bacon Sir Frank Whittle Leo H Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Automobile wheel rim Rubber boot Model airplanes Pneumatic rubber tire Automobile wheel rim Rubber boot Model airplanes Pneumatic rubber tire ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? MasterCharge Visa Discover Diner's Club MasterCharge Visa Discover Diner's Club ANSWER DOWNLOAD EXAMIANS APP
Inventions What piece of clothing was invented by French fashion designer Louis Reard in 1946? Bikini Mini-skirt Zoot suit Tank top Bikini Mini-skirt Zoot suit Tank top ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Ethyl gasoline Sonar Radar Jet propulsion Ethyl gasoline Sonar Radar Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Cabbage Carlson Swede Svenson Potato Peterson Turnip Townsend Cabbage Carlson Swede Svenson Potato Peterson Turnip Townsend ANSWER DOWNLOAD EXAMIANS APP
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