Why Are Changes in the Global Carbon Cycle Important

question 41

Multiple Choice

Why are changes in the global carbon cycle important?

• A) Carbon is the chief source of food, and burning it reduces available food for primary consumers.
• B) Carbon dioxide is a greenhouse gas, and increasing atmospheric concentrations could alter Earth's climate.
• C) Carbon can be recycled only a limited number of times.
• D) Global carbon availability is directly related to the water cycle.

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Definitions:

360-Day Year

A financial convention or simplification to treat all months as 30 days in duration for the ease of interest calculations and financial analysis.

Commission

A fee or percentage of a sale paid to an employee or agent for facilitating or completing a sale.

Semiannually

Happening semiannually; every six months.

360-Day Year

An accounting concept that simplifies interest calculations by using thirty-day months across a full year.