Final answer:
The main differences between East and South African early hominid sites lies in the geological and excavation patterns. East African sites are often located in the Great Rift Valley while South African sites are predominantly caves. Easier fossil findings in East Africa can be attributed to factors such as diverse habitats, volcanic activity, and erosion.
Step-by-step explanation:
The main differences in East vs South African early hominid sites lie in the geological and excavation patterns. In East Africa, early hominid sites are typically located in the Great Rift Valley, which offers ideal conditions for fossil preservation due to tectonic activity and volcanic processes. Excavation in East Africa often involves deep digging to uncover fossils buried below layers of sediment. In contrast, South African sites are predominantly caves and cave systems, which preserve fossils differently and require different excavation techniques.
Easier fossil findings in East Africa can be attributed to several factors. Firstly, the geological processes in the Great Rift Valley have led to the formation of numerous lakes, rivers, and sedimentary basins, creating diverse habitats for early hominids and increasing the chances of fossil preservation. Additionally, the volcanic activity in the region has provided layers of ash that can be used for dating fossils. Finally, the landforms and soil composition in East Africa make it more conducive to erosion and exposure of fossils at the surface, making them easier to find.