Arlington, Va.--Tropical ocean waters have become dramatically saltier over the past 40 years, while oceans closer to Earth's poles have become fresher, scientists report in the December 18th issue of ...
A salt is a compound composed of positively and negatively charged ions (e.g., sodium (Na⁺) and chloride (Cl⁻)). While plants require soluble salts as nutrients, excessive amounts—referred to as soil ...
Tropical ocean waters have become dramatically saltier over the past 40 years, while oceans closer to Earth's poles have become fresher, scientists reported today in the journal Nature. Earth's ...
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