Kwimeko yanamhlanje yemizi-mveliso ekhawulezayo, ukuthembeka kunye nokuqina zizinto eziphambili kushishino olungaphambili.Siyayiqonda loo nto kwaye senze iivalvu zethu zeglobhu ezinoxinzelelo oluphezulu.Ukuqwalasela ukuqina, ukuchaneka kunye nokuguquguquka, iivalvu zethu zithembisa ukuguqula iinkqubo zokulawula ukuhamba kwezoshishino.