They worshiped the stars. Not any specific religion.
They have many different religions but their main one was called Fukadik.
There are a number of things that made the Aztecs unique. They had a complex religion which was marked by interaction with deities and their main source of food was farming.
Yes.
yes
The Aztecs were polytheists who believe in deities such as Quetzalcoatl and Huitzilopochtli.
their religion was to belive in the gods
It was the Aztec who defended their religion
They worshiped the stars. Not any specific religion.
It just was.
No, they had their own religion.
Polytheism for Aztecs, Monotheism for Catholics. Or also Jesus (who does not exist in Aztec religion but is central in Christianity).
Many Aztecs converted to the religion of Spain.