Skills Required by Medical Technicians: 1  Should be well-acquainted with the technologies and methods used in testing blood. 2  Capable of looking into the details and getting apt results from the tests performed. 3  Willingness, enthusiasm and ability to meet the assigned task within time.
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 600 mM). 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+.
Seawater contains approximately 0.5 ppm nitrogen (dissolved inorganic nitrogen compounds without N2). The amount is clearly lower at the surface, being approximately 0.1 ppb. River water concentrations vary strongly, but are approximately 0.25 ppm in general.