Soils have a natural characteristic called the cation exchange capacity (CEC) that allows them to hold (and exchange) cations (e.g., Ca+2 or Na+). These cations are held tight enough on the CEC that ...
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An Argentine satellite with a U.S.-built primary instrument will begin measuring the salinity of Earth’s oceans with unprecedented detail this summer, provided its planned June 9 launch goes well. The ...
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