Chii chinoratidzwa nechikamu chimwe chete kubva muzana chokunaya kwemvura mumamiriro okunze?
Izvi zvinopa mukana wokunaya kwemvura kubva mumamodeli anofungidzirwa nenyanzvi dzemamiriro okunze. Somuenzaniso, mukana we50% wokunaya kwemvura unoreva kuti nyanzvi dzomamiriro okunze dzinoona mvura mu50% yemamiriro ezvinhu ane mhepo yakafanana, tembiricha, nguva, uye zvimwe zvinhu zvavanoshandisa mumamiriro avo okuenzanisa.