Which of the Following Statements Best Describes the Impact of Human

question 6

Multiple Choice

Which of the following statements best describes the impact of human activities on the cycling of nutrients in natural systems?

• A) Human activities are essentially benign and have little lasting impact on either atmospheric or sedimentary nutrient cycling.
• B) Human activities have profoundly affected nutrient cycling, particularly with those nutrients that cycle within the atmosphere.
• C) Human activities such as mining, construction, and road building disrupt the Earth's surface and greatly decrease those nutrients with sedimentary cycling pathways.
• D) Human activities in general significantly enhance nutrient availability and are almost always associated with ecosystem improvements.

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Definitions:

Price

The financial expenditure expected, essential, or relinquished in payment for something.

Indirect Utility Function

A concept in economics that represents the maximum utility a consumer can achieve with a given income and set prices for goods and services.

Income

Cash inflow, customarily obtained at regular periods, as compensation for work or from investment outcomes.

Constraint

A limitation or restriction on the variables of a problem, often seen in economics as budget constraints affecting consumer choices.