The surface of the table was clean of bacteria.
decomposers
A clean surface of pure uranium has a metallic appearance, as a steel.
It just means the outside surface.
No, not necessarily. It depends on what you are trying to clean off and what the surface is! Obviously you don't clean windows the same way you clean the sheets on your bed! Different tasks require different measures.
Yes! Although a room may appear clean on it's surface that does not necessarily mean it is "clean" in the sanitary aspect of the word.
The surface of the table was clean of bacteria.
Why should you keep the monitor's surface clean
It means to clean some surface, usually from a liquid or dust, using a cloth or something similar.
Moss grows anywhere it can. If an indoor surface is clean moss won't grow on it, but outdoors there's no such thing as a clean surface, so moss will grow there if the climatic conditions are right.
bacon
Isopropanol
decomposers
Yes, because its more complex to clean up groundwater than surface water.
The secret is keeping it "clean". By clean they mean the less stuff you have sticking out into the windstream the better. When you lower the flaps and slats the wing in aviation talk is dirty and when you raise them it is clean. SO a smooth aredynamic surface with as little in the windstream as possible.
If something is caustic, it means that it is corrosive. It can clean an object by dissolving material on the surface of it.
Only in some rivers.