Answer:
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.
I look like a tiny trombone
Who keeps the ocean clean?
If I have it I don't share it. If I share it I don't have it. What is it?
A necessity to some, a treasure to many, I'm best enjoyed among pleasant company. Some like me hot, some like me cold. Some prefer mild, some like me bold. What am I?
I always have to work with something in my eye. What am I?