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Bacteria can form a film over freshwater. An example is shown below.
Occasionally what appears to be a film of oil forms on still water. This can be a microorganism that uses iron and which coats the surface in an iridescent film.
Bacteria can form a film over freshwater. An example is shown below.
Occasionally what appears to be a film of oil forms on still water. This can be a microorganism that uses iron and which coats the surface in an iridescent film.
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