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 rebuts the passage's idea that people can divide the lake into several sections to control the salinity by stating that, intense geological movements, for example, the earthquake, would occur fequently in the area around the lake. As a consequence, the structure can only consist for a short while. Whenever, the earthquake happens, the wall will collapse and the lake water in different sections would get mixed again. Thus, dividing the lake would not be a good idea.
| Post date | Users | Rates | Link to Content |
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| 2020-01-28 | naziii | 88 | view |
| 2019-12-19 | shrijan | 85 | view |
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- Summarize the points made in the lecture, being sure to explain how they respond to the specific concerns presented in the reading passage.The Salton Sea in California is actually a salty inland lake. The level of salt in the lake's water—what scie 83
- 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 80
- Do you agree or disagree with the following statement? The rules that societies today expect young people to follow and obey are too strict. 75
- Do you agree or disagree with the following statement? All university students should be required to take history courses no matter what their field of study is. Use specific reasons and examples to support your answer. 78
- Should governments spend more money on improving roads and highways, or should governments spend more money on improving public transportation (buses, trains, subways? Why? Use specific reasons and details to develop your essay 73
Grammar and spelling errors:
Line 19, column 35, 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 rebuts the passages idea that people can divide the lake in...
^^^^^^^^
Transition Words or Phrases used:
also, but, finally, however, if, may, second, secondly, so, therefore, thus, 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: 16.0 5.04856512141 317% => 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: 31.0 30.3222958057 102% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1390.0 1373.03311258 101% => OK
No of words: 272.0 270.72406181 100% => OK
Chars per words: 5.11029411765 5.08290768461 101% => OK
Fourth root words length: 4.06108636974 4.04702891845 100% => OK
Word Length SD: 2.61286896618 2.5805825403 101% => OK
Unique words: 156.0 145.348785872 107% => OK
Unique words percentage: 0.573529411765 0.540411800872 106% => OK
syllable_count: 423.9 419.366225166 101% => 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: 13.0 8.23620309051 158% => 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: 22.0 21.2450331126 104% => OK
Sentence length SD: 51.3762672188 49.2860985944 104% => OK
Chars per sentence: 115.833333333 110.228320801 105% => OK
Words per sentence: 22.6666666667 21.698381199 104% => OK
Discourse Markers: 12.0833333333 7.06452816374 171% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.231501299312 0.272083759551 85% => OK
Sentence topic coherence: 0.0885833244333 0.0996497079465 89% => OK
Sentence topic coherence SD: 0.0624345327611 0.0662205650399 94% => OK
Paragraph topic coherence: 0.138741326853 0.162205337803 86% => OK
Paragraph topic coherence SD: 0.0546677386047 0.0443174109184 123% => OK
Essay readability:
automated_readability_index: 14.0 13.3589403974 105% => OK
flesch_reading_ease: 49.15 53.8541721854 91% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 12.65 12.2367328918 103% => OK
dale_chall_readability_score: 9.02 8.42419426049 107% => OK
difficult_words: 74.0 63.6247240618 116% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
---------------------
Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 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.