The answer is "the interaural level differences"
The interaural level difference is the distinction in loudness and frequency circulation between the two ears. As sound voyages, its quality scatters. Incredibly, our ears can identify commotion contrasts between the left and right ears. In any case, more imperative for sound localization is that the head throws an acoustic shadow, which changes the uproar and recurrence conveyance of sound setting off to every ear.
They set missions in north America because they wanted to spread their faith.
I believe this is a personal question
