A mechanic who does not have to think through the various possible sources of the sound in a pair of brakes, but rather hears the sound and immediately knows the problem, is an example of someone who has a high degree of .

Expertise

Explanation:

Expertise is defined as someone who has gained mastery over a craft that he can solve virtually any problem on the craft and won't be tensed with finding answers to problems unlike an intern in the craft would. The expertise would not only know the work but would perform better than most who are not, in many cases the expertise might not spend much time on the work and would perform so well. They could also detect problems by mere observation unlike a novice or a junior in the field. The mechanic has this traits, by his ability to understand the problem of a vehicle by mere observation.

it was known as the aztec empire. the capital was formally named tenochtitlan. *hope this .

we need the diagram to answer this correctly.