What describes backed microliths?

Backed microliths are indeed defined as small blades that have been retouched into specific shapes. This process involves modifying a blade to create a backing on one side, which is typically used to fit onto a handle or shaft, making them suitable for various tool applications. This design not only showcases the skill in craftsmanship during prehistoric periods but also illustrates the technological innovation of early humans as they adapted tools for specific functions, such as for hunting or gathering.

In contrast to the other options, the characteristics of backed microliths distinguish them from larger tools like cobbles, which serve different purposes such as chopping. Sharpening stones are utilized for honing the edges of various tools and are not shaped in the manner of backed microliths. Flakes used for skin scraping are also different in form and function, as they lack the specific retouching and shape that define backed microliths. Thus, understanding their unique qualities is crucial for identifying the significance of these tools in the context of human adaptability and innovation.