The main job of the outer is to collect .

The Outer Ear: Collecting Sounds

Explanation:

The pinna is the part of the ear you see on the side of your head. ... Its main job is to gather sounds and funnel them to the ear canal, which is the pathway that leads to the middle ear.

for me i have felt invisible when i was clearly struggling,or,i made a great achievement ,and,nobody took to notice me either because they just didn't see it,or,people just turned their back on me.i can see a person being invisible by choice,or,without choice like i did.the people who are invisible by choice don't try to talk to people,don't try to make friends,and,keep to themselves.i haven't been one of those people so i couldn't give you a reason.

hope this and can i get bainliest my dude : d