What do you think the Aztec are seeing for the first time?

A cannon and soldiers on horseback.

Explanation:

From the description given by the Aztecs, it is likely that what they are seeing for the first time is a cannon and soldiers riding on horseback.

The Aztecs described it as "a thing that a ball of stone comes out of its entrails" and if it were aimed at a tree, "it shatters the tree into splinters", almost as if "the tree had exploded from within" which is a very good description of a cannon.

Also, they described something about men "dressing in iron" and their "deer carrying them" anywhere they wanted to go, which is a good description of armor-wearing soldiers on horseback.

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.