In the Tropical Gyre Centers

Question

In the tropical gyre centers
A) Nitrogen often comes mainly from excretion processes
B) Nitrogen is supplied mainly on windless days from regeneration across the thermocline
C) Nitrogen mainly circulates in the form of nitrate
D) Nitrogen is surprisingly abundant

Accepted Answer

In the tropical gyre centers, nitrogen often comes mainly from the excretion processes of organisms. This is because the gyres are nutrient-poor environments, and the recycling of nutrients through biological processes like excretion is crucial for sustaining life in these areas.