Environment (systems)

Short description: Remainder of the universe outside the system (region being studied)

In science and engineering, a system is the part of the universe that is being studied, while the environment is the remainder of the universe that lies outside the boundaries of the system. It is also known as the surroundings or neighborhood, and in thermodynamics, as the reservoir. Depending on the type of system, it may interact with the environment by exchanging mass, energy (including heat and work), linear momentum, angular momentum, electric charge, or other conserved properties. In some disciplines, such as information theory, information may also be exchanged. The environment is ignored in analysis of the system, except in regard to these interactions.

## See also

* Bioenergetic systems – energy system
* Earth system science
* Environment (biophysical)
* Environmental Management System
* Thermodynamic system

## External links

* Geography of transport systems people.hofstra.edu
* Environmental Management Systems epa.gov
* Earth's Environmental Systems eesc.Columbia.edu
* Environmental Education

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