The Atmosphere Contains About 700

question 45

Multiple Choice

The atmosphere contains about 700. billion metric tons of carbon in the form of carbon dioxide. In the carbon cycle, about 200. billion metric tons of carbon (as carbon dioxide) enters the atmosphere each year. Assuming that 200. billion metric tons of carbon also leaves the atmosphere annually, how many years does the average carbon atom spend in the atmosphere in each cycle?

• A)0.29 years
• B)3.5 years
• C)500. years
• D)140,000 years
• E)More information is needed in order to calculate the answer.

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Definitions:

Machining Department

A specific section within a manufacturing facility where machining processes such as cutting, drilling, or milling are performed.

Predetermined Overhead Rate

An estimated rate used to allocate manufacturing overhead costs to individual units of production, often based on a specific activity base.

Direct Labor-Hours

The total hours of labor directly worked on the production of goods or services, used as a basis for assigning labor costs.

Machine-Hours

A measure of production time wherein the focus is on the number of hours a machine is operated in the manufacturing of goods.