The diagram below shows the development of cutting tools in the Stone Age. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The diagram provides insight into the evolution of cutting tools during the Stone Age, encapsulating millions of years in its scope. It distinguishes between two primary cutting techniques, labelled A and B, and showcases their development through the front, side, and back perspectives of the tools used. Crucially, both methodologies demonstrate a gradual reduction in material size;

nevertheless

, their dimensions differed noticeably. The tools crafted with approach A reveal a noticeable diminishment, especially at the upper part, though they retained a relative thickness from a side angle.

On the contrary

, method B's output,

while

generally larger, showcased significant slimming in the side view, taking 0.8 million years to achieve a thinner profile compared to the 1.4 million years required by method A for a comparably thicker outcome.

Furthermore

, an analysis from the frontal and rear viewpoints indicates that approach A's products were consistently smaller, providing a succinct overview of the technology's developmental trajectory.