The diagram below shows the development of the cutting tool in the Stone Age. Summarise the information by selecting and reporting the main features and make comparisons where relevant.
The diagram compares the evolvement of the cutting instrument in the Stone Age from 1.4 million years ago to 0.8 million years ago.
Overall
, this
special instrument has upgraded not only the size but also
the shape of the edges and the whole structure.
On one hand, we can observe that tool A had a primitive look with the raw edges, which is not suitable for cutting. Also
, the shape of it is significantly similar to the raw stone rather than a device for cutting. However
, it is understandable due to
the lack of crafting supplies.
On the other hand
, tool B has noticeably changed to an upgraded instrument with a sharp surface in contrast
to the rough surface of tool A. It is obvious that this
item, can easily used for cutting, and among the outlook, it enhanced and turns into a specific weapon with a sharp tip and a well-designed structure.Submitted by davoodabadimelika on
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