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.
The answer is A because they were Italian and didn't have a fair trial because they were strictly tried on the fact that they were immigrants
The correct answer is A. No because it is not speeding up.
Explanation
Acceleration is a verb that refers to the action of increasing speed. Therefore, if the boat in the photo is moving at a constant speed of twenty miles per hour, this means that it will always move at the same speed, so it will not increase or decrease its speed. So the ship is not accelerating, it is just going at the same speed. According to the above, the correct answer is A. No because it is not speeding up.
The Great Depression is described through bank failures, business failures, agricultural challenges, <em>layoffs</em>, and unemployment.
<h3>What was the causes and impact of the Great depression? </h3>
The Great Depression occurred in the US by the failure of the stock market, which lead to its crash. This generated a drastically negative impact on banks due to the creation of bank panics.
The economy suffered from a fall in <u>production and investment </u>activities. Along with this the <em>agricultural sector </em>also faced falling prices of lands and farm yield due to decreasing demand in the nation.
Therefore, common people had to face unemployment crises due to the <em>lowering </em>of industrial works.
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The Americans believed that their country was right in the part they was playing in the cold war. This may have caused many Americans to have pride for the actions their country took.