Pack Years Is the Number Of:
A) Cigarettes Per Day $\times$

question 58

Multiple Choice

Pack years is the number of:

• A) cigarettes per day \(\times\)number years smoking.
• B) packs per day \(\times\)number years smoking.
• C) packs per week \(\times\)number years smoking.
• D) packs per month \(\times\)number years smoking.

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Definitions:

Presidential Election

The process by which a country's citizens select their head of state, in countries where the president serves as both the head of state and government, often through a direct vote or an electoral college.

Water Power

The use of water flow, such as rivers or tidal currents, to generate mechanical energy or electricity, historically significant for the operation of mills and factories.

Mills

Factories or facilities for processing raw materials into finished products, often associated with the industrial revolution and the textile industry.

Cotton Plantations

Large agricultural estates in the Southern United States, where cotton was grown as the principal crop, largely through the labor of enslaved African Americans.