Use the Following Figure to Answer the Question

question 40

Multiple Choice

Use the following figure to answer the question.

Consider the global nitrogen cycle depicted in the figure. How are humans altering this cycle?

• A) industrial nitrogen fixation
• B) nitrogen lost to the atmosphere
• C) reduction of nitrogen available to terrestrial ecosystems
• D) reduction of nitrogen fixation by bacteria

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Definitions:

Motivated State

A psychological condition in which an individual is driven or moved to behave in a particular way due to internal or external forces.

Physiological Need

A basic bodily requirement that must be met to maintain health and survival, such as the need for food, water, and sleep.

Drive Reduction

A theory in psychology that suggests motivation arises from the desire to reduce internal drives caused by unmet biological needs.

Constant Internal

Ongoing, unchanging processes or conditions within an organism or system.