The given diagram describes the comparison of the development of cutting tools during Stone Age.
Overall, the process of developing cutting tools is needed to examine the stone in three different dimensions which are in the front, side and back view. Additionally, it is clear that there are two different time frame between 1.4 million years ago and 0.8 million years ago.
Examining the tool A in the upper side of the graph, it can be seen that it was recorded in 1.4 million years ago. As we can see that the stone was dark in colour and was viewed in different angles. On the front view, the size of the stone was 5cm and triangular in shape, and then if it views on the side, it becomes a bit thinner. Moreover, on the back view, it looked like the same in the front view.
On the other hand, tool b was recorded in 0.8 million years ago. The characteristics of the stone were a little different compared to 1.4 million years ago. As the stone became more lighter than the previous one. However, when it comes by looking at it in different view, it is similar.
