Taking the conditions of formation (source, origin), the main components and the physical, chemical and biological properties of waste are divided into: group
* (waste of common descent and the same properties),
* types (in terms of waste close to the main components and characteristics)
* species (more than determine the type of chemical, physical and biological characteristics),
* types (define specific characteristics of the waste within the same species), and if necessary also on the variety.
Beverage cans are a type of metal packaging waste.
Source: www.pl.wikipedia.org
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