The Invention of Machinery That Can Double the Amount of Gold

question 32

Multiple Choice

The invention of machinery that can double the amount of gold extracted from raw ore will likely:

• A)​raise the world price of gold to pay for the new machinery.
• B)​lower the world price of gold because any given amount can now be produced more cheaply.
• C)​raise the world price of gold because miners' wages must double as their productivity doubles.
• D)​lower the world price of gold only if new mining companies are not allowed to enter the industry.

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The total amount of money spent on health care services and products within a specific period or by a particular group.

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Vital organs that can be transplanted to save individuals' lives, such as hearts, livers, and kidneys.