The diagram illustrates the various stages in the purification of seawater.
Firstly, seawater is taken from a sea, after that it is piped through the pre-treatment filter. Salty water is carried then to the next stage - main treatment under pressure, pre-treatment filter backwash is returned to a sea so simultaneously
The next step of water purification occurs, when seawater is forced through semipermeable membrane. Only water molecules permeate through this membrane, whereas other molecules such as different impurities and salt are too large to go through it. Afterwards too concentrated seawater is returned back to sea, in the meantime, purified water undergoes a posttreatment with lime, fluorine and dissolved chlorine, which is used to kill bacteria. Once the water is refined, it is kept in a storage in order to be integrated into water supply system.
Harmful microorganisms and salt molecules are removed, that is why treated water is drinkable.
- To some people, studying the past has little value in the modern world. Why do you think it’s important to do so? What will be the effect if children are not taught history? 56
- The pie chart below shows the main reasons why students chose to study at a particular UK university in 1987 and in 2007. Summarise the information by selecting and reporting the main features, and make comparison where relevant 78
- The chart below gives information about Southland's main exports in 2000, 2016, and future projections for 2025. 86
- The three Pie Charts below show the changes in annual spending buy particular School in UK in 1981, 1991 and 2001.Summarise the information by selecting and reporting the main features and make comparisons where relevant. 61
- The bar chart below shows the production of the world’s oil in OPEC and non-OPEC countries.Write a short report for a university lecturer describing the information shown below. 56
Grammar and spelling errors:
Line 4, column 288, Rule ID: RETURN_BACK[1]
Message: Use simply 'returned'.
Suggestion: returned
...Afterwards too concentrated seawater is returned back to sea, in the meantime, purified water...
^^^^^^^^^^^^^
Transition Words or Phrases used:
first, firstly, if, so, then, whereas, such as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 7.0 200% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 3.0 6.8 44% => More conjunction wanted.
Relative clauses : 4.0 3.15609756098 127% => OK
Pronoun: 6.0 5.60731707317 107% => OK
Preposition: 21.0 33.7804878049 62% => OK
Nominalization: 6.0 3.97073170732 151% => OK
Performance on vocabulary words:
No of characters: 820.0 965.302439024 85% => OK
No of words: 150.0 196.424390244 76% => More content wanted.
Chars per words: 5.46666666667 4.92477711251 111% => OK
Fourth root words length: 3.49963551158 3.73543355544 94% => OK
Word Length SD: 3.16119569069 2.65546596893 119% => OK
Unique words: 97.0 106.607317073 91% => More unique words wanted.
Unique words percentage: 0.646666666667 0.547539520022 118% => OK
syllable_count: 252.9 283.868780488 89% => OK
avg_syllables_per_word: 1.7 1.45097560976 117% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 1.53170731707 131% => OK
Article: 2.0 4.33902439024 46% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 2.0 3.36585365854 59% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 7.0 8.94146341463 78% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 21.0 22.4926829268 93% => OK
Sentence length SD: 59.0952189095 43.030603864 137% => OK
Chars per sentence: 117.142857143 112.824112599 104% => OK
Words per sentence: 21.4285714286 22.9334400587 93% => OK
Discourse Markers: 6.57142857143 5.23603664747 126% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 0.0 3.70975609756 0% => More positive sentences wanted.
Sentences with negative sentiment : 2.0 1.13902439024 176% => OK
Sentences with neutral sentiment: 5.0 4.09268292683 122% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.14408917066 0.215688989381 67% => OK
Sentence topic coherence: 0.0681415452627 0.103423049105 66% => OK
Sentence topic coherence SD: 0.0249018564502 0.0843802449381 30% => Sentences are similar to each other.
Paragraph topic coherence: 0.0866593032088 0.15604864568 56% => OK
Paragraph topic coherence SD: 0.0269849442267 0.0819641961636 33% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 15.0 13.2329268293 113% => OK
flesch_reading_ease: 41.7 61.2550243902 68% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 12.7 10.3012195122 123% => OK
coleman_liau_index: 14.45 11.4140731707 127% => OK
dale_chall_readability_score: 9.84 8.06136585366 122% => OK
difficult_words: 49.0 40.7170731707 120% => OK
linsear_write_formula: 12.0 11.4329268293 105% => OK
gunning_fog: 10.4 10.9970731707 95% => OK
text_standard: 15.0 11.0658536585 136% => OK
What are above readability scores?
---------------------
More content wanted.
Rates: 61.797752809 out of 100
Scores by essay e-grader: 5.5 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.