What Am I Riddles

Question: I'm in every room, yet outside. I move at different paces, but you never see me moving. Where ever I am its crowded, but when your there you don't see or feel anyone. If you try to hit me you always miss, yet you always feel me. You need me to live, but I cause disasters. What am I?

Question: I am lonely and yet you use me a lot. What am I?

Question: While you're asleep You are also Awake, While you are Awake you're also asleep. What is it?

Question: What can you touch but not see?

Question: What has rivers but no water, forest but no trees and cities but no people.