What is the difference between primary and secondary sources?
a. primary sources are always reliable, while a secondary source's reliability depends on its creator.
b. primary sources are firsthand accounts, while secondary sources are created after the fact.
c. primary sources are very old, while secondary sources are created recently.
d. primary sources are created by regular people, while secondary sources are the work of experts.

Which region of georgia grows the most crops? appalachian plateau coastal plain piedmont ridge and valley

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.

Instead of being thirteen republics, under a federal head, [the federalists’ plan] is clearly designed to make us one [unified] government. . whether such a change can ever be [made] in any manner; whether it can be [made] without convulsions and civil wars; whether such a change will not totally destroy the liberties of this country—time only can determine. –the federal farmer what best summarizes the point of view the excerpt expresses? in time, one unified government will run the country. the federalists prefer thirteen republics to one unified government. one unified government probably will not lead to disruptions and civil wars. under one unified government, people will be robbed of their freedoms.