Dams
Hydropower dams are massive concrete walls placed inside rivers or streams to hold back water. Holes in the dam allow controlled amounts of water to pass through and as it moves through these holes, it passes through a machine, which converts that movement into electricity. Dams are incredible engineering marvels that represent one of the most beneficial and effective forms of electricity creation today.
First, dams positively impact the environment. Once constructed, these massive walls hold back tremendous amounts of water, forming artificial lakes. These lakes produce not only a wonderful habitat for fish but also a beautiful recreation area for local citizens, which serves to help the local population stay aware and respectful of nature. Additionally, through irrigation, these lakes bring to life millions of acres of ground that would otherwise lie barren.
Second, the power generated from a dam produces no harmful pollutants. This is in direct contrast to the dominant source of electricity production today—coal power plants, which are the leading cause of smog, acid rain, and air pollution. One large dam generates roughly the same amount of electricity as a typical coal plant. Consequently, dams, by replacing these plants, eliminate, among several other toxic pollutants, an average of 3.7 million tons of the global warming gas carbon dioxide per year.
Third, dams create no financial burden for the community. Because dams generate electricity and provide irrigation water for local agricultural concerns, they provide two means of bringing in revenue for owners. Combined, this revenue more than covers the significant expenses incurred during operation of the dam, resulting in significant profits. For example, the Grand Coulee Dam in Washington produces approximately 15 billion in revenue per year and requires only 5.7 billion in operating costs.
The reading states that dams are beneficial for human and provides three reasons of support. However, the professor explains that there should be more research in order to understand that are the dams beneficial or not. He states that the results of the research could not be the same as it was described in the text and refutes each of the author’s reasons.
First, the article claims that dams create a beautiful recreational areas and also a lot of water for irrigation. The professor refutes this point by saying that these dams are not really beneticial for environment and the people who live there. He states that for building these dams water should delivered to another place which cause that many fishes lost their way and die. Also, after bring back the water the water flows really slower than before which cause that productivity of the fishes that need fast water decrease.
Second, the reading posits that these dams has no harm to the environment. However, the professor declares that building dams in an environment bring flood to that place which cause the death of some vegetables. these dead bodies produce metaen which cause global warming. According to professor these phenomena cause the death of plants whish had lessen the carbon-dioxide. So as it can be seen these dams not only are not better than coal power plants, but maybe they are worse.
Third, the article avers that these dams do note create financial burden to the community. The professor opposes this point by explaining that these dams bring artificial lakes. Local resistant are coming near these artificial lakes which now is a good place to live as people can have enough water and electricity. So, to make more places for these people, there must be more construction. These construction needs more money which coms from the government aid. And so the government will get tax to solve this problem.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-11-15 | Masoud.RVN | 80 | view |
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Grammar and spelling errors:
Line 3, column 403, Rule ID: PHRASE_REPETITION[1]
Message: This phrase is duplicated. You should probably leave only 'the water'.
Suggestion: the water
...eir way and die. Also, after bring back the water the water flows really slower than before which c...
^^^^^^^^^^^^^^^^^^^
Line 5, column 213, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: These
...ich cause the death of some vegetables. these dead bodies produce metaen which cause ...
^^^^^
Discourse Markers used:
['also', 'but', 'first', 'however', 'if', 'may', 'really', 'second', 'so', 'third']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.25641025641 0.261695866417 98% => OK
Verbs: 0.165242165242 0.158904122519 104% => OK
Adjectives: 0.0712250712251 0.0723426182421 98% => OK
Adverbs: 0.0541310541311 0.0435111971325 124% => OK
Pronouns: 0.017094017094 0.0277247811725 62% => OK
Prepositions: 0.111111111111 0.128828473217 86% => OK
Participles: 0.02849002849 0.0370669169778 77% => OK
Conjunctions: 2.48865394089 2.5805825403 96% => OK
Infinitives: 0.025641025641 0.0208969081088 123% => OK
Particles: 0.0 0.00154638098197 0% => OK
Determiners: 0.136752136752 0.128158765124 107% => OK
Modal_auxiliary: 0.019943019943 0.0158828679856 126% => OK
WH_determiners: 0.025641025641 0.0114777025283 223% => OK
Vocabulary words and sentences:
No of characters: 1905.0 1645.83664459 116% => OK
No of words: 320.0 271.125827815 118% => OK
Chars per words: 5.953125 6.08160592843 98% => OK
Fourth root words length: 4.22948505376 4.04852973271 104% => OK
words length more than 5 chars: 0.296875 0.374372842146 79% => OK
words length more than 6 chars: 0.19375 0.287516216867 67% => OK
words length more than 7 chars: 0.15 0.187439937562 80% => OK
words length more than 8 chars: 0.109375 0.113142543107 97% => OK
Word Length SD: 2.48865394089 2.5805825403 96% => OK
Unique words: 168.0 145.348785872 116% => OK
Unique words percentage: 0.525 0.539623497131 97% => OK
Word variations: 54.471607184 53.8517498576 101% => OK
How many sentences: 18.0 13.0529801325 138% => OK
Sentence length: 17.7777777778 21.7502111507 82% => OK
Sentence length SD: 29.0631496343 49.3711431718 59% => OK
Chars per sentence: 105.833333333 132.220823453 80% => OK
Words per sentence: 17.7777777778 21.7502111507 82% => OK
Discourse Markers: 0.555555555556 0.878197800319 63% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 3.39072847682 59% => OK
Readability: 37.1527777778 50.5018328374 74% => OK
Elegance: 1.67469879518 1.90840788429 88% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.295183298467 0.549887131256 54% => OK
Sentence sentence coherence: 0.138648025752 0.142949733639 97% => OK
Sentence sentence coherence SD: 0.0665357012796 0.0787303798458 85% => OK
Sentence paragraph coherence: 0.5322105947 0.631733273073 84% => OK
Sentence paragraph coherence SD: 0.119925038374 0.139662658121 86% => OK
Sentence topic coherence: 0.121441793787 0.266732575781 46% => OK
Sentence topic coherence SD: 0.0398288135783 0.103435571967 39% => OK
Paragraph paragraph coherence: 0.408317074591 0.414875509568 98% => OK
Paragraph paragraph coherence SD: 0.025992212431 0.0530846634433 49% => OK
Paragraph topic coherence: 0.215435940885 0.40443939384 53% => OK
Paragraph topic coherence SD: 0.0159167393067 0.0528353158467 30% => The ideas may be duplicated in paragraphs.
Task Achievement:
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 8.0 4.45695364238 179% => OK
Sentences with neutral sentiment: 6.0 4.26048565121 141% => OK
Positive topic words: 4.0 3.49668874172 114% => OK
Negative topic words: 6.0 3.62251655629 166% => OK
Neutral topic words: 4.0 3.1766004415 126% => OK
Total topic words: 14.0 10.2958057395 136% => OK
What are sentences with positive/Negative/neutral sentiment?
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Rates: 86.6666666667 out of 100
Scores by essay e-grader: 26.0 Out of 30
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Note: This is not the final score. 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.