suggested that Africans be brought to the Americas for slave labor.

Christopher Columbus

Explanation:

He started to enslave American Indians to work in mines or on sugar plantations and they were dieing from over work and new Spanish diseases and then eventually there weren’t enough to be a work force so they went to Africa and took Africans to be in the work force. This eventually lead the the triangular trade and the Atlantic slave trade.

Hopefully this helps you :)

pls mark brainlest ;)

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.