How did we know that we need to wear spacesuits in space? Who discovered this? Wouldn't the person have died. How do you know your eyes are open when you are sleeping.

Dang thats so true though lol

Explanation:

Have a good day!

hope this !

feel free to mark as brainliest: )

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