The salton sea in California is actually a salty inland lake. The level of salt in the lake’s water—what scientists call its salinity—has been increasing steadily for years because the lake’s water is evaporating faster than it is being replaced by rainfall or rivers. If the trend continues, the lake’s water will soon become so salty that the lake will be unable to support fish and bird populations. The lake would then become essentially a dead zone. Fortunately, there are several ways to reverse the trend that is threatening the lake’s health. One option is direct removal of salt from the lake’s water in special desalination facilities. Water from the lake would be pumped into the facilities and heated. This would cause the water to evaporate into steam, while salt and other materials dissolved in the water would be reduced and the lake’s overall health would be restored.
Another possible solution id to dilute the salt level in the lake with water from the ocean. Since water in the Pacific Ocean is 20 percent less salty than water in the lake, bringing ocean water into the lake would decrease the lake’s salinity. The ocean water would be delivered through pipelines or canals.
Yet another solution would be to control the lake’s salinity by constructing walls to divide the lake into several sections. In the smaller sections, salinity would be allowed to increase. However, in the main and largest section, salinity would be reduced and controlled by, among other things, directing all the freshwater from small revers in the area to flow into that main section of the lake.
In the lecture, the professor objects the three ways to reduce the high level of salt in the salmon sea in the reading passage for the following reasons.
First, the passage suggests to directly remove the salt from the lake’s water in special desalination facilities. However, using desalination facilities do reduce the salt in the water, but may also leave behind some toxic mechanism, which can be brought into the air by the wind and damage human’s health.
Second, it is also impractical to deliver less salty ocean water into the lake to mediate its high salinity. The construction of pipelines or canals requires huge amounts of resources. It is thus a so costly proposal that the government can assume.
Third, the passage claims that constructing walls to divide the lake into sections is useful to control the lake’s salinity. What it does not consider, however, is that the walls can be easily destroyed by the frequent earthquakes in this area for a long term. Once the walls collapse, the water will mix up again and all the previous efforts can be wasted.
Transition Words or Phrases used:
also, but, first, however, may, second, so, third, thus
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 4.0 12.0772626932 33% => More relative clauses wanted.
Pronoun: 8.0 22.412803532 36% => OK
Preposition: 23.0 30.3222958057 76% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 912.0 1373.03311258 66% => OK
No of words: 183.0 270.72406181 68% => More content wanted.
Chars per words: 4.98360655738 5.08290768461 98% => OK
Fourth root words length: 3.67800887145 4.04702891845 91% => OK
Word Length SD: 2.69969689839 2.5805825403 105% => OK
Unique words: 113.0 145.348785872 78% => More unique words wanted.
Unique words percentage: 0.617486338798 0.540411800872 114% => OK
syllable_count: 282.6 419.366225166 67% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 9.0 13.0662251656 69% => 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: 20.0 21.2450331126 94% => OK
Sentence length SD: 38.4678798191 49.2860985944 78% => OK
Chars per sentence: 101.333333333 110.228320801 92% => OK
Words per sentence: 20.3333333333 21.698381199 94% => OK
Discourse Markers: 6.11111111111 7.06452816374 87% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.272324776291 0.272083759551 100% => OK
Sentence topic coherence: 0.0999731144607 0.0996497079465 100% => OK
Sentence topic coherence SD: 0.0739952879981 0.0662205650399 112% => OK
Paragraph topic coherence: 0.146250627747 0.162205337803 90% => OK
Paragraph topic coherence SD: 0.0451604034147 0.0443174109184 102% => OK
Essay readability:
automated_readability_index: 12.2 13.3589403974 91% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 8.86 8.42419426049 105% => OK
difficult_words: 49.0 63.6247240618 77% => More difficult words wanted.
linsear_write_formula: 11.5 10.7273730684 107% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Rates: 76.6666666667 out of 100
Scores by essay e-grader: 23.0 Out of 30
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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.