Ponena za kukhazikika pa bwato lanu, kudalirika ndiye chinthu chofunikira kwambiri. Chingwe cholimba komanso cholimba cha nangula ndi chingwe cholumikizidwa ndi unyolo ndizofunikira kwambiri kuti bwato lanu likhale lolimba ngakhale lili m'madzi—kaya mukusodza, kusambira, kapena kudikira mphepo yamkuntho. Zingwe zathu zapamwamba za nangula ndi zingwe zolumikizidwa ndi unyolo zimapangidwa kuti zipereke mphamvu, kulimba, komanso magwiridwe antchito apamwamba, zomwe zimapangitsa kuti zikhale chisankho chabwino kwambiri kwa oyendetsa maboti padziko lonse lapansi omwe amafuna zida zabwino kwambiri zotetezera zapamadzi.

