Question

in a high school lab setting, what factor can not be used to change the density of a water sample?
none of the above
pressure
salinity
temperature

Explanation:

In a high - school lab setting, pressure, salinity, and temperature can all change the density of water. Pressure affects the volume (and thus density) by compressing water (though the effect is relatively small for liquids like water in common lab pressure ranges). Salinity changes the mass of the water sample (as salt is dissolved, increasing mass while volume changes minimally), and temperature changes the volume of water (water expands when heated and contracts when cooled, affecting density). Since all the given options (pressure, salinity, temperature) can change water's density in a lab, "None of the above" is the correct choice.

Answer:

None of the above