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

The diagram below shows the development of cutting tools in Stone Age. Summarize the information by selecting and reporting the main features, and make comparisons where relevant
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The diagrams illustrate the evolution of the
tool
Use synonyms
used for cutting in the Stone Age from
Tool
Use synonyms
A (1.4 million years ago) to
Tool
Use synonyms
B (0.8 million years ago).
Overall
Linking Words
, the latter version became noticeably larger in size and featured a more refined appearance. It can be observed that
Tool
Use synonyms
A had no clear shape with a large base tapering towards the top and measured at around 7 cm in length, 3 cm in width with a thickness of approximately 2.5 cm. From the side view, the edges appeared to be rough and blunt.
Besides
Linking Words
, the front and back views of
this
Linking Words
tool
Use synonyms
showed similar uneven surfaces that had many large random cuts.
In contrast
Linking Words
,
Tool
Use synonyms
B, after 0.6 million years, had a more defined teardrop shape and was significantly larger than
Use synonyms
tool
Capitalize word
Tool
show examples
A. Both the front and back views revealed that the edges of
tool
Use synonyms
B were smoother, and the tip was sharper than its prior version, increasing the effectiveness of the cutting instrument.
This
Linking Words
latter version
also
Linking Words
had less surface roughness compared to the previous one.
Submitted by phamthienan150395 on

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Vocabulary: Replace the words tool with synonyms.
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