Which of the following statements best describes the work of isaac newton?
o
a. it identified laws that confirm the idea that the sun was at
the center of the solar system.
o
b. it began when a group of students and teachers left the university
of bologna in italy.
o
c. it was based on experimentation with an air pump to reveal
properties of gases.
o
d. it involved writing to the pope to encourage the study of natural
science.

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.