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Just enough to survive
Well, there are a lot of things we need to survive in space. 1. We need Oxygen 2. We need some sort of filter thing to get the carbon dioxide out of wherever we are breathing. 3. That's pretty much how but we did but a international space center in space, i don't know too much about it but i do know this stuff. hope this helps
Not long with oxygen, about two seconds without it.
not much (actually, pretty much nothing) would be able to survive because the amount of oxygen and dissolved oxygen in a river or stream can greatly affect what can and can't survive in it. not much would be able to live if all they had to live off of and take in to their systems was carbon dioxide.
no
There is no atmosphere, so oxygen would never be created in the first place. Space is so cold, that if you opened a door in space on a ship, the oxygen would be sucked out due to the oxygen being so much warmer. It's just a basic transfer of energy.
None.
Because there is so much pressure in space, they would most likely combust if they went up without it. They also wear oxygen tanks because there is no oxygen in space.
They could but, although the experience and views would be out of this world (literally!), it might not be much fun.
well... trees provide oxygen by taking in the carbon so without trees we would not have nearly as much oxygen and we would have to depend on plants to survive. so most likely a good # of us would die off
Oxygen (O2) is necessary to the respiration and the survival of astronauts in the near vacuum of space. Astronauts does not have the breathable atmosphere on Earth in space. The space suit protects them from the lethal cold and vacuum of space by keeping him in temperature controlled and pressurized environment.
One would think that the amount of oxygen used, would be the same as a herd of purple rhinos and black hippos, in the same situation. That is assuming a space craft could be developed that would carry the weight of the said animals to the space station in the first place