GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why is space travel difficult for people?
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We cannot take the air or food we need into space
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the distance are very great; it is dangerous and expensive.
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It is impossible to escape the sun’s or Earth’s gravity.
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We do not have a destination to visit that we know will support life.
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Explanation:
Detailed explanation-1: -The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.
Detailed explanation-2: -Radiation. Isolation and confinement. Distance from Earth. Gravity (or lack thereof) Hostile/closed environments. Human research essential to space exploration. 08-May-2019
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