A monarchy is a government ruled by a monarch, or a king or queen.
The volume of miners and industries using copper in the 20th century presented an exponential growth. Mining tends to extract the highest grade resources first, once they are the most profitable. With the intense activity achieved during the last century, the higher grade non renewable sources were quickly depleted, forcing the industry to start exploring lower grades sources to satisfy the demand.
It is also noteworthy that mining copper of higher quality causes more damage to the environment, having its protocols and restrictions consequently addressed by the legislation. Therefore the costs of mining 5% copper might be outweighed by a higher margin of profit from 0.5% copper which also is less damaging to the environment.
A major thing that c<span>aused labor unrest in the united states after world war one was that a large number of soldiers returned home after fighting in Europe and could not find employment. </span>
Many delegates to the French National Convention were from the Jacobin club, which was made up of smaller radical groups.
