Inventions When were blue jeans invented? 1870s 1860s 1900s 1850s 1870s 1860s 1900s 1850s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Cyclotron X ray machine Nuclear reactor Betatron Cyclotron X ray machine Nuclear reactor Betatron ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1840s 1810s 1870s 1890s 1840s 1810s 1870s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? 1825 There is no sure date 1831 1828 1825 There is no sure date 1831 1828 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bifocal Lens? Alfred B. Nobel Rudolf Diesel Thomas Alva Edison Benjamin Franklin Alfred B. Nobel Rudolf Diesel Thomas Alva Edison Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Jan Ernst Matzeliger Ernest Just Lewis Latimer Elijah McCoy Jan Ernst Matzeliger Ernest Just Lewis Latimer Elijah McCoy ANSWER DOWNLOAD EXAMIANS APP
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