Answer:
I come out of the earth, I am sold in the market. The one who buys me cuts my tail, takes off my suit of silk, and weeps beside me when I am dead. What am I?
I carry you down a gentle stream.
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
My days are numbered. What am I?
Though it be cold, I wear no clothes. The frost and snow I never fear. I value neither shoes nor hose and yet I wander far and near. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.