Answer:
Take one out and scratch my head I am now black but once was red.
You can tumble in it, roll in it, burn it, animal eat it. Used to cover floors, still used beyond stall doors. Freshens whatever it is placed on. Absorbs whatever is poured into it.
Iron roof, glass walls, burns and burns and never falls.
I'm tall in the morning and short in the noon. I disappear at night but I will be back soon.
I am the yellow hem of the sea's blue skirt.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.