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 projec

The author says that sending human to mars would require solving problems that the moon mission did not have to face. However the professor claims that although the Mars mission is challenging, there are many proposed solutions for the mentioned problems in the passage.

Firstly, the author averts that because a round-trip to Marsand back is likely to take at least two years, so it is so hard to carry supplies such as food, water and oxygen on the spacecraft vehicle for this long time. Whereas, the professor says that instead of carrying supplies into the spacecraft, there is a technique called Hydroponic, which is technique for growing plant in space,would help astronauts to cultivate food, recycle water vapor of plants to clean water, and absorb carbon dioxide then release oxygen. That's why, hydroponic technique can help to solve the problem of carrying supplies to Mars for a long time.
Secondly, the author claims that the gravity on Mars is zero, therefore exposing to zero gravity for many months would create negative effect on human body such as decreased muscle mass and lower bone density. However, the professor says that there are several techniques to manage the muscle mass and bone density of human body. Firstly, doing regular exercises. Secondly, taking vitamins and minerals that contain calcium will help to slow down the decreasing of muscle mass. That's why, there are affected strategies astronauts can follow to avoid the problems of exposing to zero gravity for many months.
Thirdly, the author averts that because there is no layer of protection from the dangerous radiation of the sun on Mars, the mission to Mars would be dangerous for astronauts. On the other hand, the professor says that dangerous level of radiation by the sun occurs occasionally, and astronauts can avoid it by using instruments to monitor solar radiation and by staying in small shielder area untill the dangerous of sun radiation is passed.

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Average: 8 (1 vote)
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Grammar and spelling errors:
Line 1, column 119, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: However,
... the moon mission did not have to face. However the professor claims that although the ...
^^^^^^^
Line 3, column 308, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ying supplies into the spacecraft, there is a technique called Hydroponic, which ...
^^
Line 3, column 389, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Put a space after the comma
Suggestion: , would
... is technique for growing plant in space,would help astronauts to cultivate food, recy...
^^^^^^
Line 3, column 524, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: That's
...orb carbon dioxide then release oxygen. Thats why, hydroponic technique can help to s...
^^^^^
Line 4, column 479, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: That's
...low down the decreasing of muscle mass. Thats why, there are affected strategies astr...
^^^^^

Transition Words or Phrases used:
first, firstly, however, second, secondly, so, then, therefore, third, thirdly, whereas, at least, such as, 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: 8.0 5.04856512141 158% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 13.0 22.412803532 58% => OK
Preposition: 42.0 30.3222958057 139% => OK
Nominalization: 5.0 5.01324503311 100% => OK

Performance on vocabulary words:
No of characters: 1640.0 1373.03311258 119% => OK
No of words: 322.0 270.72406181 119% => OK
Chars per words: 5.09316770186 5.08290768461 100% => OK
Fourth root words length: 4.23607819155 4.04702891845 105% => OK
Word Length SD: 2.53592679958 2.5805825403 98% => OK
Unique words: 164.0 145.348785872 113% => OK
Unique words percentage: 0.509316770186 0.540411800872 94% => More unique words wanted or less content wanted.
syllable_count: 496.8 419.366225166 118% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 3.25607064018 0% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 26.0 21.2450331126 122% => The Avg. Sentence Length is relatively long.
Sentence length SD: 72.6522825978 49.2860985944 147% => OK
Chars per sentence: 136.666666667 110.228320801 124% => OK
Words per sentence: 26.8333333333 21.698381199 124% => OK
Discourse Markers: 10.4166666667 7.06452816374 147% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.109695803168 0.272083759551 40% => OK
Sentence topic coherence: 0.0493175703189 0.0996497079465 49% => OK
Sentence topic coherence SD: 0.0664276596005 0.0662205650399 100% => OK
Paragraph topic coherence: 0.0840544181607 0.162205337803 52% => OK
Paragraph topic coherence SD: 0.0810805818791 0.0443174109184 183% => OK

Essay readability:
automated_readability_index: 16.0 13.3589403974 120% => OK
flesch_reading_ease: 53.55 53.8541721854 99% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 12.3 11.0289183223 112% => OK
coleman_liau_index: 12.54 12.2367328918 102% => OK
dale_chall_readability_score: 9.0 8.42419426049 107% => OK
difficult_words: 83.0 63.6247240618 130% => OK
linsear_write_formula: 12.5 10.7273730684 117% => OK
gunning_fog: 12.4 10.498013245 118% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?

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Write the essay in 20 minutes.

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.