Destination Mars Reading Questions and Answers

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  • IELTS Reading Table Completion
  • IELTS Reading True/False/Not Given

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IELTS Reading passage Destination Mars

Destination Mars

Mars is the closest potentially habitable planet. It has solid ground, protective surface features, a thin atmosphere, more closely mimics the gravitational and lighting conditions on Earth, and is reachable – just. Most importantly, studies have found that this planet has vast reserves of frozen water, and there are other basic minerals as well. In contrast, the closest heavenly body – the moon – is dusty, barren, hostile, and dark. Settlement of the moon would be much easier, but since there are no resources there, it would ultimately be more costly and of little use. If there is any extra-terrestrial site where humankind will ultimately settle, it must be Mars.

Yet this planet is much more distant than the moon, making the logistics daunting. Food, water, oxygen, and life-support systems for such a journey would be too heavy for current rocket science. Technological innovations would be necessary, and the timing of the trip absolutely critical. The different orbits of Mars and Earth mean that they most closely approach each other every 26 months, but this event itself fluctuates on a 15-year cycle. This means that only once in that time does a launch window open. That is quite few and far between, yet missions must necessarily leave at these times.

The trouble is, even then, the journey to Mars and back would take over a year, and the human body suffers profoundly when left in micro-gravity for that length of time. Without the need to stand, there is almost no flexing or pressure on the back or the leg muscles. These gradually shrink and weaken, while bones lose their density, and lungs their aerobic capacity. When left long enough in space, astronauts are unable to function properly. Yet these people will need their full physical strength and alertness for the many operational duties required. These include docking in space, approaches and landing on Mars, remote manipulation of machines, and dealing with any emergencies that arise.

Another hazard of such duration in a hermetically sealed spacecraft is disease. Human bodies constantly shed waste material (sweat, skin-flakes, hair, moisture, mucus, and the products of digestion), all of which allow microbes to breed prolifically. Coughs and sneezes spray fluids into the air, which, without gravity to pull them down to surfaces, simply float as airborne particles in those cramped confines, causing easy microbial exchange between crew members. Bacterial infections and fungal attacks can be prevalent, and human immune systems are weakened in micro-gravity. Thus, a long mission to Mars would require the best air-cleansing system available, rigorous disinfecting and hygiene procedures, plus an excellent supply of antibiotics.

On reaching Mars, the problems only increase. Staying on the planet for any significant length of time will be difficult. In the absence of a thick protective atmosphere or magnetosphere to burn up or deflect objects, respectively, astronauts will be exposed, to potentially lethal UV radiation, micro-meteoroids, solar flares, and high-energy particles, all of which regularly bombard the surface. Spacecraft and land-based capsules will need special shielding, which adds to the weight and expense. Construction of living quarters will be time-consuming, difficult, and dangerous. For a longer stay on Mars, the only solution, it seems, is to go underground.

One of the most interesting discoveries in this respect is of possible cave entrances on the side of Arsia Mons, a large Martian volcano. Seven such entrances have been identified in satellite imagery, showing circular holes resembling the collapse of cave ceilings. The hope is that these may lead to more extensive cave formations, or perhaps lava tubes, offering the protection necessary in such a hostile terrain. An additional benefit is the potential access to vital minerals, and most importantly of all, the possibility of frozen water. These sites therefore open up the possibility of independent and permanent settlement on this planet.

The most exciting option is to attempt that on the very first trip – in other words, making it a oneway journey. The advantage is that the duration of space travel is immediately halved, reducing the technological, biological, and financial challenges. This very strong argument is somewhat offset by the difficulties in establishing a permanent presence, as well as the necessary ongoing commitment to it – for example, in the delivery of food and supplies via unmanned spacecraft. Similarly, the psychological effects on these pioneers of permanent isolation from Barth and its community, as well as being crowded into confined Martian living quarters with the same companions, raise issues of whether such a settlement is humanly feasible.

This begs the question of why undertake such missions at all. The answer, according to proponents, is that it is our destiny. Throughout history, explorers have regularly embarked on journeys in the full knowledge that death may await them, or that even if they succeeded, their health and wellbeing would be severely compromised. And today, people regularly practise extreme sports, or work in dangerous occupations, all of which significantly lower their life expectancy. The risks involved in being a Martian pioneer are no different, and so, it is argued, there is no reason why they should deter us now.

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Questions 27-30

Do the following statements agree with the information given in Reading Passage One? Write

TRUE if the statement agrees with the information
FALSE if the statement contradicts the information
NOT GIVEN If there is no information on this

27. The greatest advantage of Mars is that it has many basic minerals.
28. Settlement of the moon would be more expensive.
29. The magnetosphere burns up objects.
30. A one-way expedition to Mars is better.

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Questions 31-35

Complete the table. Choose NO MORE THAN TWO WORDS from the passage for each answer.

Problems involved in travelling to MarsAssociated fact
inadequate rocketryscientists would need (31)…………………….
infrequent (32)………………….once every 15 years
effect of space on (33)……………….bones (34)…………………
diseaselack of gravity facilitates (35)……………………

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Questions 36-40

Give TWO examples of the following categories. Choose NO MORE THAN TWO WORDS from the passage for each example.

CategoriesExampleAnother example
Human attributes needed for important space activitiesphysical strength(36)…………………
Specific medical conditions which could occur in space(37)………………….fungal attack
Solid objects which could strike astronauts on Mars(38)……………….high-energy particles
Useful substances inside Martian cavesvital minerals(39)………………….
High-risk activities happening now on Earthextreme sports(40)………………

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