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marinebio.net/marinescience/02ocean/swcomposition.htm

Seawater Composition: Almost anything can be found in seawater. ... Variations occur in ocean salinity due to several factors. The most common factor is the relative amount of evaporation or precipitation in an area. If there is more evaporation than precipitation then the salinity increases (since salt is not evaporated into the atmosphere). ...

courses.lumenlearning.com/earthscience/chapter/composition-of-ocean-water

Composition of Ocean Water. Water has oftentimes been referred to as the “universal solvent”, because many things can dissolve in water (Figure 14.4). Many things like salts, sugars, acids, bases, and other organic molecules can be dissolved in water. Pollution of ocean water is a major problem in some areas because many toxic substances ...

www.cgd.ucar.edu/cas/tn404/text/tn404_10.html

The composition of the atmosphere and oceans is an important component of the climate system. From the deepest part of the ocean to the top of the atmosphere, atmospheric and oceanic composition exerts a profound influence on the atmosphere/ocean's structure and dynamical systems, and on the radiation emitted and absorbed by the atmosphere.

www.britannica.com/science/seawater

Chemical composition. The chemical composition of seawater is influenced by a wide variety of chemical transport mechanisms. Rivers add dissolved and particulate chemicals to the oceanic margins. Wind-borne particulates are carried to mid-ocean regions thousands of kilometres from their continental source areas.

glossary.periodni.com/glossary.php?en=composition+of+ocean+water

The proportions of the major constituents of ocean water are almost constant throughout the world. Salinity (total salt content) and the concentrations of individual chemical constituents in sea wateris given the units psu (practical salinity units).

study.com/academy/lesson/oceanic-crust-definition-composition-facts.html

Oceanic Crust: Definition, Composition & Facts. ... and the crust that lies at the ocean floor. Oceanic crust is the part of the Earth's crust that makes up the seafloor. It's thinner, denser, and ...

en.wikipedia.org/wiki/Ocean

The ocean has a significant effect on the biosphere. Oceanic evaporation, as a phase of the water cycle, is the source of most rainfall, and ocean temperatures determine climate and wind patterns that affect life on land. Life within the ocean evolved 3 billion years prior to life on land.

www.seafriends.org.nz/oceano/seawater.htm

This world map of ocean acidity shows that ocean pH varies from about 7.90 to 8.20 but along the coast one may find much larger variations from 7.3 inside deep estuaries to 8.6 in productive coastal plankton blooms and 9.5 in tide pools. The map shows that pH is lowest in the most productive regions where upwellings occur.

oceanplasma.org/documents/chemistry.html

It has roughly 2/3 the salt content of regular seawater. Ocean salinity (expressed in ‰ - per mil) is approximately equal to the weight, in grams, of salts dissolved in 1000g of seawater. This would be the salt concentration in parts-per-thousand (‰). Average ocean water has a salinity of 35g of dissolved salts.

www.soest.hawaii.edu/oceanography/courses/OCN623/Spring2012/Salinity2012web.pdf

Chemical composition of seawater; Salinity and the major constituents OCN 623 – Chemical Oceanography. Salt dissolved in ocean water alters the properties of water Freezing point of seawater is ~ -1.8˚C Density continually increases to freezing point .