Answer:
A group of individual parts that interact and form a more complex whole.
Explanation: A system encompass the combination of one or more parties which interacts in order to form a complex body that is bigger than each of the individual parts which formed it.
A system is usually more efficient as it ensures that all the Individual forming units interacts with its own capacity to ensure that the newly formed complex is Effective and efficient.
<span>A. there is little left in the country, and it continues to be politically and socially unstable</span>
Answer:
Explanation:
No one knows for sure who first invented such money, but historians believe metal objects were first used as money as early as 5,000 B.C. Around 700 B.C., the Lydians became the first Western culture to make coins. Other countries and civilizations soon began to mint their own coins with specific values. The federal government began issuing paper currency during the American Civil War. As photographic technology of the day could not reproduce color, it was decided the back of the bills would be printed in a color other than black. Because the color green was seen as a symbol of stability, it was selected.