Problems of sending human to Mars
The reading addresses several issues that humans may face when traveling to Mars. On the other hand, the lecturer provides solutions, which are mainly proposed by scientists, to these problems individually.
First, sufficient supplies of food, water and oxygen is essential for human living. However, due to the limited cargo capacity of spacecrafts, it is impossible to put an amount required for traveling to Mars on board. To resolve this, the speaker introduces the concept of hydroponics, in which plants are cultivated with their roots in water instead of soil. That way, a steady food resource that occupies less space is available. What's more, this system can also recycle waste water and turn them into drinkable ones, while plants can generate fresh air, tackling the deficiency of two other necessary survival elements.
Second, the passage implies that zero-gravity environments can pose a threat on human bodies. To answer this, the professor points out that any astronauts have been working in space stations under zero gravity, and have learned numerous techniques so as to overcome health effects. For example, they exercise in space and take in minerals and vitamins to reduce the rapid loss of muscle mass and bone density.
Lastly, the article infers that since a shield will be too heavy, there are currently no means of protecting spaceships from being exposed to solar radiation. Nonetheless, the lecturer states that since sun activity actually bursts occasionally, there will only be certain times when humans need to avoid strong radiation. He suggests that humans should construct a small, light shelter on the spaceship, assisting it with a solar radiation monitor. That way, they can continue their work in unprotected areas during normal time periods and hide themselves in the shelter while boosted radiation attacks.
| Post date | Users | Rates | Link to Content |
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| 2022-10-16 | mia14121312 | 85 | view |
| 2022-10-16 | mia14121312 | 3 | view |
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| 2021-06-19 | talelaldabous | 73 | view |
| 2021-02-18 | talelaldabous | 76 | view |
- Topic Do you agree or disagree with the following statement In twenty years there will be fewer cars in use than there are today 89
- Do you agree or disagree with the following statement All university students should be required to take history courses no matter what their field of study is 90
- Problems of sending human to Mars 90
- TPO50 80
- Do you agree or disagree with the following statement It is more important for governments to spend money to improve Internet access than to improve public transportation 76
Grammar and spelling errors:
Line 3, column 433, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: What's
... that occupies less space is available. Whats more, this system can also recycle wast...
^^^^^
Line 5, column 249, Rule ID: SO_AS_TO[1]
Message: Use simply 'to'
Suggestion: to
...y, and have learned numerous techniques so as to overcome health effects. For example, t...
^^^^^^^^
Transition Words or Phrases used:
actually, also, first, however, lastly, may, nonetheless, second, so, while, as to, for example, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 9.0 5.04856512141 178% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 22.0 22.412803532 98% => OK
Preposition: 40.0 30.3222958057 132% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1564.0 1373.03311258 114% => OK
No of words: 293.0 270.72406181 108% => OK
Chars per words: 5.33788395904 5.08290768461 105% => OK
Fourth root words length: 4.13729897018 4.04702891845 102% => OK
Word Length SD: 2.64585917418 2.5805825403 103% => OK
Unique words: 199.0 145.348785872 137% => OK
Unique words percentage: 0.679180887372 0.540411800872 126% => OK
syllable_count: 478.8 419.366225166 114% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 7.0 3.25607064018 215% => Less pronouns wanted as sentence beginning.
Article: 8.0 8.23620309051 97% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 36.7815531627 49.2860985944 75% => OK
Chars per sentence: 111.714285714 110.228320801 101% => OK
Words per sentence: 20.9285714286 21.698381199 96% => OK
Discourse Markers: 8.14285714286 7.06452816374 115% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.126277159876 0.272083759551 46% => OK
Sentence topic coherence: 0.0388749225455 0.0996497079465 39% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0393951418782 0.0662205650399 59% => OK
Paragraph topic coherence: 0.070281959106 0.162205337803 43% => OK
Paragraph topic coherence SD: 0.0341602494782 0.0443174109184 77% => OK
Essay readability:
automated_readability_index: 14.2 13.3589403974 106% => OK
flesch_reading_ease: 51.18 53.8541721854 95% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 13.69 12.2367328918 112% => OK
dale_chall_readability_score: 9.96 8.42419426049 118% => OK
difficult_words: 99.0 63.6247240618 156% => OK
linsear_write_formula: 8.5 10.7273730684 79% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
---------------------
Rates: 90.0 out of 100
Scores by essay e-grader: 27.0 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.