Sisitemu 3 nziza yo kuyungurura amazi kumasoko kurubu
Mu bice byinshi byo muri Amerika no mu bihugu byateye imbere, abantu bafite amazi meza yo kunywa. Nyamara, amazi arashobora kuba arimo umwanda nka nitrate, bagiteri, ndetse na chlorine ishobora gutuma amazi yawe ya robine aryoha. Uburyo bumwe bwo kweza amazi yawe an ...
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