GEOLOGY

Detailed explanation-1: -Fresh water is more dense than sea water. No worries!

Detailed explanation-2: -Salt water is heavier (more dense) than fresh water (because of the salt dissolved in the water) so things have different buoyancies in the different types of water. Density is weight per volume, or how much “stuff” something is made of.

Detailed explanation-3: -saltwater has a higher density than freshwater. less dense matter will lie above more dense matter.

Detailed explanation-4: -Salt water is more dense than fresh water Salt water has more stuff in it than fresh water. That stuff would be the salt, which makes the mass of water greater, without adding much to its volume. Density = mass/volume. Increasing the mass by adding salt increases the density.

Detailed explanation-5: -Seawater is denser than both fresh water and pure water (density 1.0 kg/L at 4 °C (39 °F)) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases. At typical salinity, it freezes at about −2 °C (28 °F).