There is sufficient oxygenated air in the lower half of the troposphere, the lowest level of the atmosphere. Above 10,000 feet ASL (3 km) the air begins to become thin, and by 25,000 feet (8 km), it can barely provide enough oxygen for human activities.
atmosphere or troposphere
No, the only planet you can breathe on is Earth ^-^
Air: 78% nitrogen, 21% oxygen, 1% other. We breathe oxygen and other molecules.
People breathe out because we need to breathe fresh air, and if we kept the same air in our bodies it would not be fresh after a while, and we would die.
No, you cannot breathe air bubbles underwater because they do not contain enough oxygen to sustain human respiration.
Yes. We breathe air all the time. If we didn't we would asphyxiate and die.
No, the m50 mask is not the most effective in confined spaces where there is not enough oxygen in the air to breathe to support life.
No people do not have the right to breathe in your air, as it's not public use you could sue these people who do that and when you are done suing people you go and celebrate, your case winning in court!! Good luck suing people who aren't allowed to breathe in your air !! ;)
Air does not come out of your eyes when you breathe, or at least it is not supposed to. Air shouldn't come out of your eyes when you breathe. Air should only come out of your mouth and nose when you breathe.
The air that people breathe in a cycle of the earth
According to many scientists and researches, people cannot breathe in water because water molecules cannot be absorbed by human lungs. Humans have lungs that do not have enough surface area to absorb enough oxygen from water. Our lungs are more much more adapted to air than water.
People can only breathe on Earth because the atmosphere here contains the right amount of oxygen needed for human respiration. Other planets may have atmospheres with different compositions that do not support human life.