This substance lies underneath so-called false bottoms, which form through double diffusion. This substance may become trapped in pockets following its namesake rejection. It’s not related to thermodynamics, but the potential density of this substance is displayed (-5[1])on T-S diagrams. Deviations from this substance’s VSMOW standard are used to identify periods during which it becomes enriched with oxygen-18 (-5[1])due to low temperatures. (-5[1])This dense substance (-5[1])lies below Ghyben–Herzberg (-5[1])lenses, which share their name with an equation used to model its “intrusion.” The SMOC (“S-mock”) and AMOC (“A-mock”) drive the thermohaline (-5[1])circulation of this substance. (10[1])Reverse osmosis is often (10[1]-5[1])used to purify, (-5[1])for 10 (-5[1])points, (10[2])what substance that mixes with a fresh counterpart in estuaries? (10[1])■END■ (10[7])