The diagram below shows the development of cutting tools in the Stone Age

The diagram illustrates how the cutting utensils developed in the Stone Age 1.4 million and 0.8 million years ago.

Overall, it is apparent that both tools had the same length, but there were considerable disparities in their shapes.

According to the tool A that existed 1.4 million years ago, the tools were 5 cm long, and slightly straight. While observing the tool from the front view, it ican be seen that the tool was shaped like a mountain, and the back view shows the similar image. Regarding its side view, it was much thinner as compared to the front and back sides of the equipment.

Turing to the tool B, we can clearly see that the cutting equipment possessed a shape similar to a crystal stone. From the fron side, it had a little unclear form, but the back view represents the tool as the pure crystal. If we look from the side view, however, it is much thinner even than the tool A. Additionally, the B that was used for cutting purposes during the Stone Age 0.8 million years ago. had also the length of 5 cm.

Votes
Average: 7.8 (1 vote)
Essays by the user:

Grammar and spelling errors:
Line 7, column 404, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Had
...ng the Stone Age 0.8 million years ago. had also the length of 5 cm.
^^^

Transition Words or Phrases used:
also, but, however, if, look, regarding, so, while

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 8.0 7.0 114% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 6.0 6.8 88% => OK
Relative clauses : 5.0 3.15609756098 158% => OK
Pronoun: 14.0 5.60731707317 250% => Less pronouns wanted
Preposition: 14.0 33.7804878049 41% => More preposition wanted.
Nominalization: 2.0 3.97073170732 50% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 848.0 965.302439024 88% => OK
No of words: 188.0 196.424390244 96% => OK
Chars per words: 4.51063829787 4.92477711251 92% => OK
Fourth root words length: 3.70287850203 3.73543355544 99% => OK
Word Length SD: 2.34346997346 2.65546596893 88% => OK
Unique words: 105.0 106.607317073 98% => OK
Unique words percentage: 0.558510638298 0.547539520022 102% => OK
syllable_count: 246.6 283.868780488 87% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 1.53170731707 392% => Less pronouns wanted as sentence beginning.
Article: 3.0 4.33902439024 69% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 4.0 0.482926829268 828% => Less conjunction wanted as sentence beginning.
Preposition: 3.0 3.36585365854 89% => OK

Performance on sentences:
How many sentences: 10.0 8.94146341463 112% => OK
Sentence length: 18.0 22.4926829268 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 29.1039516217 43.030603864 68% => OK
Chars per sentence: 84.8 112.824112599 75% => OK
Words per sentence: 18.8 22.9334400587 82% => OK
Discourse Markers: 5.0 5.23603664747 95% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 3.0 3.70975609756 81% => OK
Sentences with negative sentiment : 3.0 1.13902439024 263% => Less negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.287667991131 0.215688989381 133% => OK
Sentence topic coherence: 0.107248892204 0.103423049105 104% => OK
Sentence topic coherence SD: 0.0927961539398 0.0843802449381 110% => OK
Paragraph topic coherence: 0.174280370187 0.15604864568 112% => OK
Paragraph topic coherence SD: 0.09769722804 0.0819641961636 119% => OK

Essay readability:
automated_readability_index: 9.2 13.2329268293 70% => Automated_readability_index is low.
flesch_reading_ease: 78.59 61.2550243902 128% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 6.8 10.3012195122 66% => OK
coleman_liau_index: 8.88 11.4140731707 78% => OK
dale_chall_readability_score: 7.64 8.06136585366 95% => OK
difficult_words: 37.0 40.7170731707 91% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 9.2 10.9970731707 84% => OK
text_standard: 9.0 11.0658536585 81% => OK
What are above readability scores?

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Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.