Why was Columbus sent back to Spain in chains after his third voyage to the Americas? He hadn’t found enough riches for Spain.
He had planted the Spanish flag in Venezuela.
He had failed to make friends with the American Indians.
He and his two brothers had ruled Hispaniola harshly.

Which of the following accurately describes the workforces of the united states and canada? a. most of the workforce in the united states and canada is employed in the service industry. b. most of the workforce in the united states and canada is employed in the educational field. c. most of the workforce in the united states and canada is employed in manufacturing and mining. d. most of the workforce in the united states and canada is employed in agriculture.

Answer correct get brainliest and 20 points

During the 1980s, profit from the sale of weapons to iran was used to stop the communists in costa rica. start a proxy war in el salvador. support the contras in nicaragua. stage a coup d’état in guatemala.