<u>The correct answer is: he went from Arkansas post to Fort Smith in 1818</u>. His first contact with the frontier occurred during a mineralogical journey through Arkansas in 1817 and 1818. Schoolcraft is known for its discovery of the source of the Mississippi River. He was a geographer, ethnologist and geologist.
Some of the peoples it conquered didn't want to be ruled by the Incas and were rebellious, mainly, and it was so big that it couldn't keep the conquered in line very well.
Answer:
C.It gave them rich soil to grow food
Explanation:
The river is water and with water you can have rich soil due to the good water back then and you can grow really good food when you have good soil.
I hope it helps