News tagged with seawater
Related topics: ocean acidification , water , carbon dioxide , ocean , calcium carbonate
Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every 1 kg of seawater has approximately 35 grams of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl-). The average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts. The freezing point of sea water decreases with increasing salinity and is about -2°C (28.4°F) at 35 gram per liter.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
Scientists discover how animals taste, and avoid, high salt concentrations
Researchers have discovered how the tongue detects high concentrations of salt, the first step in a salt-avoiding behavior common to most mammals. The findings could serve as a springboard for the development of taste modulators ...
Health
Feb 13, 2013 |
5 / 5 (1) |
1
|
New research reveals cheese saltier than seawater
New research from CASH (Consensus Action on Salt and Health) at Queen Mary, University of London, has revealed the unnecessarily high levels of salt in a staple of the country's shopping baskets – cheese.
Health
Nov 29, 2012 |
5 / 5 (1) |
0
Does the sea pose a risk to our health?
A new study has discovered viruses in almost 40 % of more than 1,400 bathing water samples collected from coastal and inland areas in 9 European countries. The findings, presented in the journal Water Research, sugges ...
Health
Jul 13, 2011 |
3 / 5 (1) |
0
