Recycling-reuse or recycle waste or debris. The most common secondary, tertiary, and so on processing in a particular scale of materials such as glass, paper, aluminum, asphalt, iron, textiles and various types of plastic. Also, since ancient times used in agriculture, organic agricultural and municipal waste.First, the resources of many materials on Earth are limited and may not be filled in time comparable to the lifetime of the human civilization. Second, once in the environment, materials usually as contaminants. Third, the waste and to end its life-cycle is often (but not always) a cheaper source of many substances and materials than natural sources.
Recycling-reuse or recycle waste or debris. The most common secondary, tertiary, and so on processing in a particular scale of materials such as glass, paper, aluminum, asphalt, iron, textiles and various types of plastic. Also, since ancient times used in agriculture, organic agricultural and municipal waste.First, the resources of many materials on Earth are limited and may not be filled in time comparable to the lifetime of the human civilization. Second, once in the environment, materials usually as contaminants. Third, the waste and to end its life-cycle is often (but not always) a cheaper source of many substances and materials than natural sources.