The Figure Below Shows the Net Primary Productivity (NPP) in Marine

question 65

Multiple Choice

The figure below shows the net primary productivity (NPP) in marine biomes around the world. The pattern of NPP in marine ecosystems as shown suggests that

• A)marine productivity is as sensitive to temperature as terrestrial productivity.
• B)without shade from overhead vegetation, marine productivity typically exceeds that found in terrestrial ecosystems.
• C)marine ecosystems are also limited by sunlight, with the highest productivity at the equator.
• D)most marine productivity results from the input of terrestrially derived nutrients.

---

Definitions:

Capital Goods

Long-lasting goods that are used to produce other goods or services and are not sold directly to consumers.

Law of Increasing Opportunity Costs

states that as production of one good increases, the opportunity cost of producing an additional unit of this good also increases, due to factors of production not being perfectly interchangeable.

Satisfy Wants

The process of fulfilling the desires or needs of consumers through the provision of goods and services.

Marginal Cost Curve

A graphical representation that shows how the cost of producing one additional unit of a good changes as the quantity of production is increased.