The most common form of political participation in the United States is A) belonging to a political party.
B) working on a political campaign.
C)voting in presidential elections.
D) writing letters to public officials

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

answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest

jewish people sniffed up all of the money, thus making it hard for society