While it is now never used in currency, the metal silver is used in jewellery and Photography.
Carbon films or carbonaceous films
borron
The lion King(:
Dry ice
Carbon films
Polonium
Used in photographic films as coatings
Photographic plates or films can be destroyed in direct contact with plutonium.
There is no standard collective noun for photographic film, in which case, a noun suitable for the situation is used; for example, a case of photographic film, a cache of photographic film, a supply of photographic film, etc.
The element described is silver.
glass,water,air,photographic films,
There is no specific collective noun form photographic film, in which case a noun suitable for the context is used, for example a roll of photographic film, a case of photographic film, an archive of photographic film, etc.
Photographic film is derived from silver alloys and plastics. paper backing on some films certainly is arboreal, but not the fim itself.
It bonds the silver to the polyester film.
Forest.
Everything fades. However, old Xray films are the same as black-and-white photographic film. They last 100 years plus and counting. There is a big business in converting Xray films to computer files and then harvesting the film for the silver.
If someone wants to put together a photographic darkroom the most important thing they need is to make sure that blackout curtains or equivalent are sued to render it suitably dark. Then they will need relevant lighting and containers and chemicals for developing the films.