Gungwa ndiyo nzira yekutsigira hupenyu hwePasi. Gungwa rinogadzirisa tembiricha, mamiriro ekunze, uye mamiriro ekunze. Gungwa mhenyu rinotonga makemikari emapuraneti; inogadzirisa tembiricha; inoburitsa yakawanda yeokisijeni mugungwa nemhepo; inopa simba kutenderera kwemvura, kabhoni, uye nitrogen. Inobata 97% yemvura yePasi uye 97% yebiosphere….Full Report.