Question

ocean water
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what happens when waters salinity increases?
○ mass decreases.
○ freezing point decreases.
○ buoyancy of objects decreases.
○ the amount of dissolved minerals decreases.

Explanation:

When salinity increases, the freezing point of water decreases. This is because the dissolved salts disrupt the formation of ice crystals. Mass is related to the amount of matter and salinity change doesn't directly decrease mass. Buoyancy of objects actually increases in more saline water (as density increases). And when salinity increases, the amount of dissolved minerals increases, not decreases.

Answer:

Freezing point decreases.