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.

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

because he is that the right