During the first decade of the twenty-first century, daily newspapers were in trouble all across the country, many having closed and many others poised to do so. This worried some scholars who believed that newspapers are vital for maintaining .

Democracy

Explanation:

During the first decade of the twenty-first century, daily newspapers were in trouble all across the country, many having closed and many others poised to do so. This worried some scholars who believed that newspapers are vital for maintaining democracy.

b. the 200th birthday of the united states

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain