gravity
Humans breathe with atmospheric pressure, which is the pressure exerted by the weight of the Earth's atmosphere. This pressure allows air to flow into our lungs during inhalation and out during exhalation.
yes
The large weight of the atmosphere keeps the human body 'pushed' together. In space, there is no atmosphere to 'push' the body together, so the body will rupture or explode without the pressure suits.
Venus is very hot with poisonous gases in the atmosphere, Mars is very cold with a low atmospheric pressure.
To do this you need an increase in pressure and oxygen
the planes don't need air pressure, the humans inside need oxygen to breath and the air gets thinner the higher you go
The atmosphere contains Nitrogen, a gas that humans need to breakdown protein. Nitrogen take up 78 percent of it. Oxygen is found in the atmosphere (let's assume that you knew that). We all know what the Oxygen does... right?
Humans don't get crushed by the weight of the atmosphere because our bodies are filled with fluids and gases that exert pressure outward, counteracting the atmospheric pressure acting on us. Additionally, the atmospheric pressure is evenly distributed across our bodies, so there is no net force that would cause us to be crushed. Our physiological structures are adapted to this pressure, allowing us to function normally in the presence of atmospheric weight.
The factors that affect gas exchange in humans include the amount of gases in the atmosphere. It also includes temperature, atmospheric pressure and ion concentrations.
On Jupiter, the atmosphere is mainly composed of hydrogen and helium with trace amounts of other gases. Since humans cannot breathe hydrogen, the lack of oxygen in Jupiter's atmosphere would make it impossible for humans to breathe there. Additionally, the extreme pressure and temperature on Jupiter would also make it uninhabitable for humans.
the use of fossil fuels by humans had tainted the air and atmosphere
To find the partial pressure of nitrogen, you first need to calculate the total pressure exerted by the atmosphere due to nitrogen. Since nitrogen makes up 78% of the atmosphere, you would multiply the total atmospheric pressure (749 mm Hg) by 0.78 to get the partial pressure of nitrogen, which would be 585.22 mm Hg.