Scientists are considering the possibility of sending humans to Mars in the coming decades Although there have been successful manned missions to the Moon in the 1960s and 1970s Mars is 150 times further away from Earth than the Moon is Thus the project o

The reading and the lecture are both about the journey to Mars. While the author of the reading passage argues that the journey to Mars is impossible due to this trip's dangerous problems, the professor disputes this claim. She states that researchers have proposed solutions for each issue suggested by the text. The lecturer casts doubt on the main points made in the reading by providing three controversial reasons.

In the reading passage, the author begins by saying that food, water, and oxygen is the main problem of this journey. A round-trip to Mars lasts about two years, and it is impossible to carry the required amount of water, food, and oxygen for two years in the cargo of the space vehicles. However, the professor disagrees with this idea. She asserts that astronauts can use a new method to cultivate plants in the spaceship. They can grow plants whose roots are in water instead of soil. So in this way, they can produce food crops as well as plants recycling the water. Therefore, they would not face food and water problem. Besides, all plants absorb CO2 and emit oxygen, so they would have fresh air to breathe.

Furthermore, according to the reading passage, staying for a period of two years in zero-gravity conditions poses some severe physical damage to the astronauts' bodies. On the other hand, the professor points out that many astronauts currently spend months in space stations under zero gravity. They use some techniques to keep their body in healthy condition; for example, they do regular exercises and consume vitamins and calcium.

Finally, the writer believes that being exposed to solar radiation for a long time is too harmful to astronauts, and a protective shield cannot be added to the space vehicles since it would add too much weight to the ship. Not surprisingly, the professor refutes this assertion by contending that solar radiations are not always at a dangerous level. Spaceships can be equipped with devices to monitor solar radiation. Also, only a part of the spaceship can be shielded so its weight would not exceed the allowable limit. Whenever the device shows a dangerous level of solar radiation, the astronauts can reside in the protected area.

To sum up, both the lecturer and the author hold conflicting views on the difficulties with the journey to Mars.

Votes
Average: 0.3 (1 vote)
Essay Categories
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Grammar and spelling errors:
Line 1, column 158, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...he journey to Mars is impossible due to this trips dangerous problems, the professor...
^^^^

Transition Words or Phrases used:
also, besides, finally, furthermore, however, if, so, therefore, well, while, for example, as well as, to sum up, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 11.0 5.04856512141 218% => Less auxiliary verb wanted.
Conjunction : 10.0 7.30242825607 137% => OK
Relative clauses : 8.0 12.0772626932 66% => More relative clauses wanted.
Pronoun: 25.0 22.412803532 112% => OK
Preposition: 53.0 30.3222958057 175% => OK
Nominalization: 5.0 5.01324503311 100% => OK

Performance on vocabulary words:
No of characters: 1941.0 1373.03311258 141% => OK
No of words: 390.0 270.72406181 144% => Less content wanted.
Chars per words: 4.97692307692 5.08290768461 98% => OK
Fourth root words length: 4.44391917772 4.04702891845 110% => OK
Word Length SD: 2.58168968517 2.5805825403 100% => OK
Unique words: 210.0 145.348785872 144% => OK
Unique words percentage: 0.538461538462 0.540411800872 100% => OK
syllable_count: 584.1 419.366225166 139% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 7.0 3.25607064018 215% => Less pronouns wanted as sentence beginning.
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 4.0 1.51434878587 264% => Less conjunction wanted as sentence beginning.
Preposition: 4.0 2.5761589404 155% => OK

Performance on sentences:
How many sentences: 21.0 13.0662251656 161% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 42.9594545965 49.2860985944 87% => OK
Chars per sentence: 92.4285714286 110.228320801 84% => OK
Words per sentence: 18.5714285714 21.698381199 86% => OK
Discourse Markers: 6.2380952381 7.06452816374 88% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => 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: 0.0264416761503 0.272083759551 10% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.00721392682267 0.0996497079465 7% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0137715891187 0.0662205650399 21% => Sentences are similar to each other.
Paragraph topic coherence: 0.0133527459506 0.162205337803 8% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0143142168898 0.0443174109184 32% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.

Essay readability:
automated_readability_index: 11.3 13.3589403974 85% => Automated_readability_index is low.
flesch_reading_ease: 61.67 53.8541721854 115% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 8.58 8.42419426049 102% => OK
difficult_words: 100.0 63.6247240618 157% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?

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Write the essay in 20 minutes.
It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.

Rates: 3.33333333333 out of 100
Scores by essay e-grader: 1.0 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.