Hero of Alexandria Invented ______________

question 47

Multiple Choice

Hero of Alexandria invented ______________.

• A) the first steam engine
• B) the water clock
• C) the Anticythera Device
• D) a screw that could be used for irrigation and which bears his name
• E) the first keyboard instrument

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Definitions:

Minimum-wage Laws

Legislation that sets the lowest legal wage that can be paid to workers, aiming to ensure a minimum standard of living for employees.

Unskilled Labor

Labor that requires no specialized skills, education, or training to perform, often associated with lower wages.

Elastic

Describing demand or supply that is highly responsive to changes in price, with a percentage change in quantity demanded or supplied that is greater than the percentage change in price.

Tax Liability

The total amount of tax that an individual or entity is legally obligated to pay to a tax authority.