From sea level to an altitude of 300 meters there is enough oxygen. After 300 meters of altitude, there is enough oxygen. 4500 meters to 4800 meters of altitude and low atmospheric pressure due to lack of oxygen to human breath.
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At 5.5 kilometers above sea level, the amount of available oxygen is significantly reduced compared to sea level. This high up in the atmosphere, the air pressure is lower, resulting in thinner air with less oxygen available to breathe. This decrease in oxygen can make it difficult for humans to obtain enough oxygen for normal bodily functions without supplemental oxygen.
What I know is - and I don't know much - that there is half as much oxygen than hydrogen - one oxygen molecule per every two hydrogen molecules.
There is more oxygen available above sea level as the air gets thinner with increasing altitude, leading to lower oxygen levels. Below sea level, such as in deep-sea environments, the oxygen levels can vary but are generally lower compared to surface levels.
The amount of available oxygen in the atmosphere is approximately 21%. This level is generally consistent at sea level but can vary slightly depending on factors like altitude and air quality.
Yes, there is a significant difference between 600ft and 3300ft above sea level. At 3300ft above sea level, you are much higher in elevation compared to 600ft, which can affect things like temperature, air pressure, and oxygen levels.
The highest level of the atmosphere is the exosphere, which starts at about 500 kilometers above the Earth's surface and extends out to about 10,000 kilometers. This region is where the atmosphere gradually transitions into outer space and where satellites orbit the Earth.
The biosphere is about 28 kilometers thick, from 19 km below sea level to 9 km above sea level. This equates to 28,000 meters in thickness.