1.   A layer of dust covered everything in the room.

2.   A fresh layer of snow covered the street.

3.   Inside the building a fine layer of soot covers everything, samples of which have turned up high levels of dioxin and other dangerous substances.

4.   Layers of rubble covered the ground.

5.   Nearly all of the brass portholes had been vandalized, and a layer of grease covered every inch of the engine room.

6.   My seed-saving bible told me to wait until a layer of mold covered the surface or until bubbles began rising from the top.

7.   The water that pooled there from the river was lukewarm, and a layer of clay covered the rocks on both sides and even the sand at the bottom.

8.   This oily material rests on the river bottom and has been covered by layers of silt and sediment.

9.   A black layer of ink covers the red that blotted its books in the past.

10.   A thin layer of snow covers some of the corridors in the presidential palace on the other end of the square.