Which of the following describe how water mixes in a thermohaline current select the two correct answers

Cold water sinks under warmer water
Warm water sinks under cold water
Saltier water sinks under less salty or water
Less salty water sinks under less salty or water

The two correct answers are:

1. Cold water sinks under warmer water: This is because cold water is denser than warm water, causing it to sink.

2. Saltier water sinks under less salty water: Water with a higher salinity (salt content) is denser than water with a lower salinity, so it will sink beneath less salty water.