"Standard of the World" was the slogan of which luxury General Motors make?

Around 1904, which Norwegian explorer confirmed that Earth's magnetic north pole is not fixed? American and European eels are believed to spawn in which sea in the North Atlantic? Around 1908, tea merchant Thomas Sullivan is credited with which invention that avoids the mess of straining leaves? Around 1910, Carl Bosch of BASF learned to make large quantities of which gas from nitrogen and hydrogen? Around 1910, Thomas Hunt Morgan showed that which hereditary units are located on chromosomes? In the early 1900s, two painters from the art institute of which city founded the Ox-Bow school in Saugatuck, Michigan? Around 1912, Robert Delaunay created Orphism by bringing bold color to which art movement? Around 1912, while recovering from tuberculosis in a sanatorium, which former seaman decided to become a playwright?