Which scientific advancement is linked to the muslim scholar al-
khwarizmi?

a. he developed a unified theory of quantum mechanics
b. he transformed the field of particle physics
c. he invented a new branch of mathematics, algebra
d. he discovered a new species of life on the ocean floor

Which of the following most accurately describes china today

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.

As a result of the germanic tribes sacking rome