As big as it is,the ocean is nutrient-limited.If you wanted to investigate this,one reasonable approach would be to
A)follow whale migrations in order to determine where most nutrients are located.
B)observe Southern/Antarctic Ocean productivity from year to year to see if it changes.
C)enrich some areas of the ocean,and compare their productivity to that of untreated areas.
D)compare nutrient concentrations between photosynthetic and non-photosynthetic zones.
E)contrast nutrient uptake by autotrophs in marine locations with different temperatures.

Question

Quizplus · Accepted Answer

Enriching some areas of the ocean and comparing their productivity to untreated areas would be a reasonable approach to investigate ocean nutrient limitation. This would provide a direct comparison of productivity between nutrient-rich and nutrient-limited areas, allowing for a better understanding of the effects of nutrient availability on ocean productivity. Following whale migrations or observing productivity from year to year may provide some insights, but they would not provide a direct comparison between nutrient-rich and nutrient-limited areas. Comparing nutrient concentrations between photosynthetic and non-photosynthetic zones or contrasting nutrient uptake by autotrophs in marine locations with different temperatures would provide insights into specific aspects of nutrient limitation, but may not provide a comprehensive understanding of nutrient limitation in the ocean.

As Big as It Is,the Ocean Is Nutrient-Limited