australia is in the continent of australia it is both a continent and a country note contrary to erroneous opinion it is not in the continent of either aus tralasia or oceania neither of these is a geographical continent but rather they are both political regionst is sometimes referred to as an island continent because it is one of only two continents in the world completely surrounded by water australia is part of the geographic region of oceania which by definition is not actually a continent
So, the colder the water, the more dense it is. Increasing salinity also increases the density of sea water. Less dense water floats on top of more dense water. Given two layers of water with the same salinity, the warmer water will float on top of the colder water.
Changes in ocean water density with depth at different latitudes. Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM), which is a specific gravity of about 1.025.This means that every kilogram (roughly one litre by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na+) and chloride (Clâ) ions).he density of surface seawater ranges from about 1020 to 1029 kg/m 3, depending on the temperature and salinity. Deep in the ocean, under high pressure, seawater can reach a density of 1050 kg/m 3 or higher.