Answer:
Take off my skin I won't cry but you will.
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I go in dry and come out wet. The longer I stay in, the stronger my surroundings get. What am I?
Cloud is my mother. Wind is my father. I come down but never go up. What am I?
I plow and plow, but never sow. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.