Answer:
I can be quick and then I'm deadly, I am a rock, shell and bone medley. If I was made into a man, I'd make people dream, I gather in my millions By ocean, sea and stream.
I fly through the air on small feathered wings, seeking out life and destroying all things.
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.