Final answer:
Unifacial Clear Fork tools were used for various activities such as butchering animals, working with wood, and scraping hides in prehistoric times, similar to how bifacial tools were used.
Step-by-step explanation:
Unifacial Clear Fork tools were crafted as part of various stone tool industries adopted by prehistoric peoples. Unlike bifacial tools such as Acheulean hand axes, which were modified on both sides, unifacial tools have a single worked surface. Although not explicitly mentioned in the provided reference information, unifacial tools were generally used for butchering animals, woodworking, and scraping hides just like their bifacial counterparts. This was particularly effective during periods like the Oldowan and Mousterian where stone tools played an integral part in the survival strategies of early humans.