1) As one of the possible (perhaps less significant, possible will continue some better) to offer an explanation of the reasoning that the prehistoric inhabitants needed the water to survive.
1) Kama moja ya Possible (Labda chini Muhimu, Inawezekana itaendelea baadhi) bora kutoa maelezo ya hoja Hiyo Wakazi prehistoric zinahitajika maji ili kuishi.