The Availability of Soil Nutrients Has a Direct Effect on Primary

Multiple Choice

The availability of soil nutrients has a direct effect on primary productivity.Which of the following is most correct regarding non-limiting and limiting nutrients?

A) Only phosphorus acts as a limiting nutrient to global primary productivity.
B) Adding a limiting nutrient,such as nitrogen,would decrease primary production.
C) Increases in non-limiting nutrients result in increases in primary productivity.
D) Nitrogen is the limiting nutrient when considering global primary production.
E) Phosphorous is the only limiting nutrient in terrestrial primary productivity.