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The atmosphere in a sealed space craft contains
pure oxygen
A mix of oxygen and nitrogen
mix of oxygen and carbon dioxide
pressurized atmospheric air available normally on earth
Answers (1)
Yes, in a sealed spacecraft, the atmosphere is typically a mix of oxygen and nitrogen, similar to the Earth's atmosphere. The composition of the spacecraft's atmosphere is carefully controlled to provide a breathable environment for the crew. The specific proportions of oxygen and nitrogen are adjusted to maintain the necessary oxygen levels for respiration while also providing a suitable partial pressure of nitrogen to avoid adverse physiological effects, such as nitrogen narcosis or decompression sickness. The exact composition and control of the spacecraft's atmosphere may vary depending on the mission and specific spacecraft design. Hence, the correct answer is option 2.
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