The major source of nutrients in surface waters of the open ocean is
A) mixing of subsurface with surface waters.
B) deposition from the atmosphere.
C) addition by ocean currents bringing nutrients from nearshore waters.
D) decomposition of dead organic material.
E) photosynthesis by planktonic algae.

Question

Quizplus · Accepted Answer

Mixing of subsurface with surface waters is the major source of nutrients in the open ocean, as deeper waters are typically nutrient-rich and mixing brings these nutrients to the surface.

The Major Source of Nutrients in Surface Waters of the Open