It was allocated for Lakota Sioux to settle, but the US government maintained mining rights.
That is the answer.
Farm workers lost their jobs.
Farmers could have more land under cultivation.
Unemployed farm workers moved into cities.
Answer:
The increase in agricultural production and technological advancements during the Agricultural Revolution contributed to unprecedented population growth and new agricultural practices, triggering such phenomena as rural-to-urban migration, development of a coherent and loosely regulated agricultural market.
Explanation: