Answer:
I am needed for most animals and hardcover books
A large oasis in the desert. Come with cash and leave with none.
I am the only vegetable or fruit that is never sold frozen canned processed or in any other form but fresh.
You do not want me when you donβt have me but when you have me you don't want to lose me.
I am so delicate that even mentioning me breaks me. What am I?
Give it food and it will live, give it water and it will die.