Question

question 6
which of the following does not contribute to salinity?
precipitation
pressure
freezing/melting
evaporation

Explanation:

Salinity refers to the salt - content in water. Precipitation adds freshwater (low - salt water) which can dilute the salt content. Freezing causes salt to be excluded from the ice, increasing salinity of the surrounding water, and melting adds freshwater. Evaporation removes water (in the form of vapor), leaving more salt behind (increasing salinity). Pressure has no direct chemical or physical relationship with the salt - content (salinity) of water.

Answer:

pressure