How Is Atmospheric Oxygen Linked to the Carbon Cycle

question 45

Multiple Choice

How is atmospheric oxygen linked to the carbon cycle?

• A)More burial of organic carbon in sediments results in more oxygen in the atmosphere and oceans.
• B)More photosynthesis leads to more oxygen in the atmosphere and oceans.
• C)More volcanic CO₂ emission leads to more oxygen in the atmosphere and oceans.
• D)Longer food chains with more consumers lead to more oxygen in the atmosphere and oceans.

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The total expense incurred to manufacture a product or deliver a service, including materials, labor, and overhead costs.

Product Cost

The total of costs directly assigned to the production of a product, including raw materials, labor, and manufacturing overhead.

Period Cost

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