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In the future, if you travel with astronauts in a spaceship to space. At that time, you will be out of the biosphere, but you will have to get out of it.

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Humans need nutrients to provide energy to survive, need oxygen to breathe, need water, because water is the basic components of the composition of the cells, the human body of the various activities of life can not be separated from the water, so you need to carry the material is oxygen bags, The main reason for this is the fact that it is not possible to carry an oxygen bag, mineral water, and a variety of food.
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