Which statements describe aspects of the Aztec's civilization? Choose all answers that are correct.

capital city with a population larger than any European city of the time

predicted eclipses and developed a 365-day calendar

communicated using runners from the capital city of Cuzco

practiced human sacrifice to keep Huitzilopochtli strong

They communicated using runners from the capital of Cuzco and practiced human sacrifice to keep Huitzilopochtli strong.

The Aztecs didn’t have official trade routes so they used runners instead to exchange goods. Note that Cuzco is in South America where the Aztec Empire was. The Aztecs also practiced human sacrifice because they believed that the gods sacrificed themselves to create the world so sacrificing humans would pay them back.