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
The article states that dams are the most beneficial and effective forms of electricity and provides three reasons of support. However, the professor explains that dams effectiveness need more studies before making any decisions. Dams pose many drawbacks and he refutes each of the author’s reasons.
First, the reading avers that dams are positively impact the environment. They create artificial lakes that support fish populations, be creational places for locals, and even help irrigation for farms. The professor refutes this point by explaining environments would suffer during dams construction. He says that during the construction, water way of streams or river, should be diverted in order to built a dam. This alteration would affect the fish migration populations negatively so they will die. Also, when the dam finished , water flow would be very slowly and consequently, the reproduction of fish reduce. Because fish need a high velocity of water flowing to lay their eggs.
Second, the article claims that the power generated from dams produce no harmful pollutants. The professor, on the other hand, explains that normally, dams cause flowed to nearby areas, as a result, all vegetation farms will die. When the plants die, methane gas would be released from these plants. So, the toxic gas would have global warming effect as in the case of carbon dioxide gas. He concludes that a high percentage of these poisonous gas would be released when plants destroyed.
Third, the reading posits that dams create no financial burden for the community, but they bring many revenues to its economy. The professor opposes this point by saying that these communities will suffer financially from dams building. Since the artificial lakes flow surrounding areas, local properties would be damaged, or destroyed, and eventually, people need to relocate to other places. So, these relocations, in addition to plants destructions as the professor mentioned before, are not cheap at all. He also adds that constructions of dams are not feasible as the author would like as to believe, governments aids are needed to get these construction be done.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-11-15 | Masoud.RVN | 80 | view |
| 2019-05-29 | ahmet vahibe | 71 | view |
| 2018-10-21 | Reza9696 | 86 | view |
| 2018-10-21 | Reza9696 | 86 | view |
| 2018-10-19 | Taniazehra | 88 | view |
- TPO-27 - Integrated Writing Task The little ice age was a period of unusually cold temperature in many parts of the world that lasted from about the year 1350 until 1900CE. There were unusually harsh winters, and glaciers grew larger in many areas. Scient 78
- TPO-04 - Integrated Writing Task Endotherms are animals such as modern birds and mammals that keep their body temperatures constant. For instance, humans are endotherms and maintain an internal temperature of 37°C, no matter whether the environment is wa 80
- TOEFL T P O 26 Integrated Writing Task 87
- TPO-21 - Integrated Writing Task Genetic modification, a process used to change an organism’s genes and hence its characteristics, is now being used to improve trees through genetic modification. It is possible to create trees that produce more fruit, g 73
- Some people believe that the Earth is being harmed (damaged) by human activity. Others feel that human activity makes the Earth a better place to live. What is your opinion? Use specific reasons and examples to support your answer. 80
Grammar and spelling errors:
Line 4, column 51, Rule ID: BEEN_PART_AGREEMENT[2]
Message: Consider using a past participle here: 'impacted'.
Suggestion: impacted
... reading avers that dams are positively impact the environment. They create artificial...
^^^^^^
Line 4, column 353, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...at during the construction, water way of streams or river, should be diverted in ...
^^
Line 4, column 533, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Put a space after the comma, but not before the comma
Suggestion: ,
...ey will die. Also, when the dam finished , water flow would be very slowly and con...
^^
Line 4, column 619, Rule ID: SENTENCE_FRAGMENT[1]
Message: “Because” at the beginning of a sentence requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
...ently, the reproduction of fish reduce. Because fish need a high velocity of water flow...
^^^^^^^
Line 6, column 251, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ion farms will die. When the plants die, methane gas would be released from these...
^^
Line 8, column 642, Rule ID: THIS_NNS[2]
Message: Did you mean 'this construction' or 'these constructions'?
Suggestion: this construction; these constructions
...eve, governments aids are needed to get these construction be done.
^^^^^^^^^^^^^^^^^^
Transition Words or Phrases used:
also, but, consequently, first, however, if, second, so, third, as to, in addition, as a result, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 15.0 5.04856512141 297% => Less auxiliary verb wanted.
Conjunction : 9.0 7.30242825607 123% => OK
Relative clauses : 14.0 12.0772626932 116% => OK
Pronoun: 28.0 22.412803532 125% => Less pronouns wanted
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 10.0 5.01324503311 199% => OK
Performance on vocabulary words:
No of characters: 1829.0 1373.03311258 133% => OK
No of words: 340.0 270.72406181 126% => OK
Chars per words: 5.37941176471 5.08290768461 106% => OK
Fourth root words length: 4.29407602571 4.04702891845 106% => OK
Word Length SD: 2.88921349689 2.5805825403 112% => OK
Unique words: 198.0 145.348785872 136% => OK
Unique words percentage: 0.582352941176 0.540411800872 108% => OK
syllable_count: 542.7 419.366225166 129% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Interrogative: 2.0 0.116997792494 1709% => Less interrogative sentences wanted.
Article: 10.0 8.23620309051 121% => OK
Subordination: 5.0 1.25165562914 399% => Less adverbial clause wanted.
Conjunction: 4.0 1.51434878587 264% => Less conjunction wanted as sentence beginning.
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 20.0 13.0662251656 153% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 25.7693616529 49.2860985944 52% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 91.45 110.228320801 83% => OK
Words per sentence: 17.0 21.698381199 78% => OK
Discourse Markers: 5.7 7.06452816374 81% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 6.0 4.19205298013 143% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 9.0 4.45695364238 202% => Less negative sentences wanted.
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.128462002459 0.272083759551 47% => OK
Sentence topic coherence: 0.044440823116 0.0996497079465 45% => OK
Sentence topic coherence SD: 0.03264783481 0.0662205650399 49% => Sentences are similar to each other.
Paragraph topic coherence: 0.0827832579598 0.162205337803 51% => OK
Paragraph topic coherence SD: 0.0279066246019 0.0443174109184 63% => OK
Essay readability:
automated_readability_index: 12.4 13.3589403974 93% => Automated_readability_index is low.
flesch_reading_ease: 54.22 53.8541721854 101% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 13.63 12.2367328918 111% => OK
dale_chall_readability_score: 9.17 8.42419426049 109% => OK
difficult_words: 101.0 63.6247240618 159% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
---------------------
Write the essay in 20 minutes.
Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 Out of 30
---------------------
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.