What Am I Riddles

Question: I have 13 arms, 10 legs, 2 head, and smell like burnt denim.

What am I?

Question: I grow from trees and your home,
once I am grown I fall to my doom.

What am I?

Question: What goes up, lets out a load, then goes back down?

Question: These are the three lives of mine:
So gentle I soothe the skin,
So light I caress the sky,
So hard I crack rocks.

What am I?

Question: What heavy seven letter word can you take two away from and be left with eight?