Because people want to trade goods.
A closed system is a system that cannot exchange matter with its surroundings, but can exchange energy. A system that cannot exchange matter or energy with its surroundings is called an isolated system.
Yes it can... An open system can exchange both energy and matter with its surroundings, where as a closed system CAN exchange energy, but CANNOT exchange matter with its surroundings. Also, an isolated system cannot exchange energy nor matter with its surroundings.
A closed system or an open system. An open can also exchange matter. An Isolated system can exchange neither.
In physics, an open system allows for the exchange of matter and energy with its surroundings, while a closed system does not allow for the exchange of matter but can exchange energy with its surroundings.
A system that cannot exchange matter with its surroundings A system that allows energy to move in and out but not mass ~ Apex
An open system allows for the exchange of matter and energy between the system and outside of the system. A closed system only allows the exchange of energy; not matter.
A system that can exchange matter with its surroundings
World Stock Exchange was created in 2007.
A _barter_ system involves the direct exchange of goods and services without the use of money as a medium of exchange.
A closed system is a system that can exchange energy (heat and work)with its surroundings, but can not exchange matter with its surrounding.A greenhouse to some extent can be thought of as a closed system exchanging heat with its surroundings.In general, a system is the part of the universe under consideration.Systems can be isolated, closed, or opened.An isolated system can not exchange energy, and can not exchange matter with its surroundings.In contrast, an opened system can exchange both energy and matter with its surroundings.
The vascular system, or respiratory system, deals with the exchange of oxygen to carbon dioxide. This exchange occurs in the alveoli sacs
Barter system involves the direct exchange of goods and services for the same.