Which situation was an immediate cause for the collapse of the aztec civilization

What evidence is there that the amazons may have existed in real life?

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

What do you think was a drawback to this method of calculating distance