Answer:
When liquid splashes me, none seeps through. When I am moved a lot, liquid I spew. When I am hit, color I change. And color, I come in quite a range. What I cover is very complex, and I am very easy to flex.
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.
White bird, featherless, flying out of paradise. Flying over sea and land. Dying in my hand.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?