In contrast to manganese nodules which form on the abyssal plain, phosphate-rich nodules form in:
A) continental shelf waters..
B) estuaries.
C) hydrothermal vent areas.
D) intermediate to shallow depth water.
E) mid-ocean ridges.

Question

Quizplus · Accepted Answer

Phosphate-rich nodules typically form in intermediate to shallow depth waters where conditions favor the precipitation of phosphate minerals, unlike manganese nodules which form in the deep ocean abyssal plains.

In Contrast to Manganese Nodules Which Form on the Abyssal