Question

All of the following concentrations would increase with depth except for _________.

Question 6 options:



phosphate




carbon dioxide




oxygen




nitrate

Answer 1

Nitrate.

Step-by-step explanation:

Pore- water phosphate ion concentrations in many marine settings increase with depth.

As depth increases, dissolved oxygen declines, reaching a minimum between a few hundred meters and 1000 m deep, the aptly-named oxygen minimum layer .

Groundwater nitrate concentrations are typically found higher in the shallow portions of the aquifer, decreasing with depth