Izinzwa ze-calcium ion zizixhobo ezisebenzayo zokujonga umgangatho wamanzi, ezibonakala ngokubona ngexesha langempela, uvakalelo oluphezulu, kunye nokuphendula ngokukhawuleza. Zisetyenziswa kakhulu emanzini okusela, amanzi amdaka emizi-mveliso, kunye nokujonga umgangatho wamanzi okusingqongileyo. EMexico, apho imithombo yamanzi inqongophele khona...
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