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.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-12-02 | lynn19971020 | 76 | view |
| 2019-10-10 | Shayooooon | 86 | view |
| 2019-03-29 | ouma | 76 | view |
| 2018-12-29 | jian1kang | 76 | view |
| 2018-09-25 | CH97ch | 76 | view |
- 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 b 33
- Do you agree or disagree with the following statement? Playing computer games is a waste of time. Children should not be allowed to play them.Use specific reasons and examples to support your answer. 70
- Do you agree or disagree with the following statement? Playing computer games is a waste of time. Children should not be allowed to play them.Use specific reasons and examples to support your answer. 70
- Do you agree or disagree with the following statement? Playing computer games is a waste of time. Children should not be allowed to play them.Use specific reasons and examples to support your answer. 70
- Do you agree or disagree with the following statement:People should sometimes do things that they do not enjoy doing.Use specific reasons and details to support your answer. 70
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 19.5258426966 36% => More to be verbs wanted.
Auxiliary verbs: 6.0 12.4196629213 48% => OK
Conjunction : 4.0 14.8657303371 27% => More conjunction wanted.
Relative clauses : 4.0 11.3162921348 35% => More relative clauses wanted.
Pronoun: 8.0 33.0505617978 24% => OK
Preposition: 23.0 58.6224719101 39% => More preposition wanted.
Nominalization: 4.0 12.9106741573 31% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 912.0 2235.4752809 41% => More number of characters wanted.
No of words: 183.0 442.535393258 41% => More content wanted.
Chars per words: 4.98360655738 5.05705443957 99% => OK
Fourth root words length: 3.67800887145 4.55969084622 81% => OK
Word Length SD: 2.69969689839 2.79657885939 97% => OK
Unique words: 113.0 215.323595506 52% => More unique words wanted.
Unique words percentage: 0.617486338798 0.4932671777 125% => OK
syllable_count: 282.6 704.065955056 40% => syllable counts are too short.
avg_syllables_per_word: 1.5 1.59117977528 94% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 6.24550561798 32% => OK
Article: 5.0 4.99550561798 100% => OK
Subordination: 0.0 3.10617977528 0% => More adverbial clause wanted.
Conjunction: 1.0 1.77640449438 56% => OK
Preposition: 1.0 4.38483146067 23% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 9.0 20.2370786517 44% => 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 23.0359550562 87% => OK
Sentence length SD: 38.4678798191 60.3974514979 64% => OK
Chars per sentence: 101.333333333 118.986275619 85% => OK
Words per sentence: 20.3333333333 23.4991977007 87% => OK
Discourse Markers: 6.11111111111 5.21951772744 117% => OK
Paragraphs: 4.0 4.97078651685 80% => OK
Language errors: 0.0 7.80617977528 0% => OK
Sentences with positive sentiment : 3.0 10.2758426966 29% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 5.13820224719 78% => OK
Sentences with neutral sentiment: 2.0 4.83258426966 41% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.272324776291 0.243740707755 112% => OK
Sentence topic coherence: 0.0999731144607 0.0831039109588 120% => OK
Sentence topic coherence SD: 0.0739952879981 0.0758088955206 98% => OK
Paragraph topic coherence: 0.146250627747 0.150359130593 97% => OK
Paragraph topic coherence SD: 0.0451604034147 0.0667264976115 68% => OK
Essay readability:
automated_readability_index: 12.2 14.1392134831 86% => Automated_readability_index is low.
flesch_reading_ease: 59.64 48.8420337079 122% => OK
smog_index: 8.8 7.92365168539 111% => OK
flesch_kincaid_grade: 9.9 12.1743820225 81% => OK
coleman_liau_index: 11.6 12.1639044944 95% => OK
dale_chall_readability_score: 8.86 8.38706741573 106% => OK
difficult_words: 49.0 100.480337079 49% => More difficult words wanted.
linsear_write_formula: 11.5 11.8971910112 97% => OK
gunning_fog: 10.0 11.2143820225 89% => OK
text_standard: 12.0 11.7820224719 102% => OK
What are above readability scores?
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Better to have 5/6 paragraphs with 3/4 arguments. And try always support/against one side but compare two sides, like this:
para 1: introduction
para 2: reason 1. address both of the views presented for reason 1
para 3: reason 2. address both of the views presented for reason 2
para 4: reason 3. address both of the views presented for reason 3
para 5: reason 4. address both of the views presented for reason 4 (optional)
para 6: conclusion.
Minimum 250 words wanted.
Rates: 33.33 out of 100
Scores by essay e-grader: 2.0 Out of 6
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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.