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Andrew Sherratt's model of a secondary products revolution involved a widespread and broadly contemporaneous set of innovations in Old World farming.The use of domestic animals for primary carcass products was broadened from the 4th–3rd millennia BCE (c. Middle Chalcolithic) to include exploitation for renewable 'secondary' products: milk, wool, traction (the use of animals to drag ploughs ...
In the context of production, a by-product is the "output from a joint production process that is minor in quantity and/or net realizable value (NRV) when compared with the main products". [2] Because they are deemed to have no influence on reported financial results, by-products do not receive allocations of joint costs.
Secondary metabolites, also called specialised metabolites, secondary products, or natural products, are organic compounds produced by any lifeform, e.g. bacteria, archaea, fungi, animals, or plants, which are not directly involved in the normal growth, development, or reproduction of the organism.
In macroeconomics, the secondary sector of the economy is an economic sector in the three-sector theory that describes the role of manufacturing. It encompasses industries that produce a finished, usable product or are involved in construction .
Baking bread, regardless of whether it is made at home, in a small bakery, or in a large factory, is an example of secondary food processing. [2] Fermenting fish and making wine, beer, and other alcoholic products are traditional forms of secondary food processing. [4]
Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. [ 1 ] : 11 The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option.
Cross merchandising is the retail practice of marketing or displaying products from different categories together, in order to generate additional revenue for the store, sometimes also known as add-on sales, incremental purchase or secondary product placement. Its main objective is to link different products that complement each other or can ...
Secondary packaging is the outer wrapping of one or several cosmetic containers. An important difference between primary and secondary packaging is that any information that is necessary to clarify the safety of the product must appear on the primary package. Otherwise, much of the required information can appear on just the secondary packaging.