Question

where in the oceans are the coldest, saltiest, waters located?
sunlight zone
thermocline zone
pelagic zone
deep zone

Explanation:

The deep zone of the ocean is far from the surface. It receives little to no sunlight, so the temperature is very low. Also, due to the lack of mixing with surface waters (which can have lower salinity in some areas due to processes like precipitation), the deep - zone waters can be relatively salty. The sunlight zone is warm and has more mixing. The thermocline zone is a transition zone between warmer surface and colder deep waters. The pelagic zone is a broad term for the open - water column, but it doesn't specifically denote the coldest and saltiest waters as precisely as the deep zone.

Answer:

deep zone