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 left behind. The steam would then be cooled down and returned to the lake as salt-free water. Gradually, the high salt levels would be reduced and the lake’s overall health would be restored.
Another possible solution is 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 could 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 rivers in the area to flow into that main section of the lake.
In the lecture, the professor casts doubt on the methods mentioned in the writing passage the would help reduce the salt level of the lake. The professor believes that the author's ideas are not practical and refutes them one by one.
To begin with, according to the passage, people could use special desalination facilities to remove the salt by evaporating the water and leaving the solid salt behind. However, the professor argues that it would lead to serious problems, because the solid remaining may contain other types of chemicals, which could be toxic. If these chemicals spread out in the wind and people breathe them in, it would be dangerous to people's health.
Secondly, the author claims that people can also deliver the water from the sea to the lake, so that they can dilute the salt level of the lake. On the contrary, the professor demonstrates that, this method requires a large quantity of pipelines, which would be unaffordable for the government to pay. The professor explains that, the sea is 100 kilometers away from the lake, therefore, the construction would cost considerable of resources as well as be very expensive.
Finally, the professor refutes the passage's idea that people can divide the lake into several sections to control the salinity. The professor states that, there would be frequent and intense geological movements in the area around the lake, for example, the earthquake. As a consequence, the structure can only consist for a short while. Whenever, the earthquake happens, the wall would collapse.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-10-16 | zhrnrz1992 | 81 | view |
| 2019-10-15 | wty980711 | 83 | view |
| 2019-10-10 | azaza | 86 | view |
| 2019-09-19 | Farnam | 73 | view |
| 2019-09-16 | Mamalhastam | 73 | view |
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Grammar and spelling errors:
Line 9, column 318, Rule ID: AGREEMENT_SENT_START[1]
Message: You should probably use 'explain'.
Suggestion: explain
...r the government to pay. The professors explains that, the sea is 100 kilometers away fr...
^^^^^^^^
Line 13, column 36, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'passages'' or 'passage's'?
Suggestion: passages'; passage's
... Finally, the professor refutes the passages idea that people can divide the lake in...
^^^^^^^^
Transition Words or Phrases used:
also, finally, however, if, may, second, secondly, so, therefore, well, while, for example, as well as, on the contrary, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 14.0 5.04856512141 277% => Less auxiliary verb wanted.
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 29.0 30.3222958057 96% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1304.0 1373.03311258 95% => OK
No of words: 254.0 270.72406181 94% => More content wanted.
Chars per words: 5.13385826772 5.08290768461 101% => OK
Fourth root words length: 3.99216450694 4.04702891845 99% => OK
Word Length SD: 2.66723494059 2.5805825403 103% => OK
Unique words: 147.0 145.348785872 101% => OK
Unique words percentage: 0.57874015748 0.540411800872 107% => OK
syllable_count: 399.6 419.366225166 95% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 14.0 8.23620309051 170% => OK
Subordination: 4.0 1.25165562914 320% => Less adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 35.9127027975 49.2860985944 73% => OK
Chars per sentence: 108.666666667 110.228320801 99% => OK
Words per sentence: 21.1666666667 21.698381199 98% => OK
Discourse Markers: 11.1666666667 7.06452816374 158% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.198124988603 0.272083759551 73% => OK
Sentence topic coherence: 0.071611688758 0.0996497079465 72% => OK
Sentence topic coherence SD: 0.0627114899848 0.0662205650399 95% => OK
Paragraph topic coherence: 0.121172530498 0.162205337803 75% => OK
Paragraph topic coherence SD: 0.0493329684147 0.0443174109184 111% => OK
Essay readability:
automated_readability_index: 13.3 13.3589403974 100% => OK
flesch_reading_ease: 50.16 53.8541721854 93% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 12.47 12.2367328918 102% => OK
dale_chall_readability_score: 8.97 8.42419426049 106% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 10.4 10.498013245 99% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
---------------------
Rates: 83 out of 100
Scores by essay e-grader: 25 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.