can you explain it further why it give them air?
374341
because without air we all die ? ?
142692
whew, thats odd, um i would have to say the reaction that takes place to create all that gas that is produced to fill up the air bag, im completely guessing tho, so dont take my word on it
568737
the air is lower pressure at higher altitude which means it is thinner, so there is less oxygen. if they already have trouble getting enough oxygen, then they will have much more trouble.
751358
they have a high specific heat capacity,\nBecause it takes a lot of energy to make them increase in temperature.
142782
IT MEANS THAT AIR HAD ENTERED IT
802914
Your puzzle is explained in part by the thermodynamic behavior of air.  \n\nWhen a 'pocket' of air is heated, its density decreases relative to the surrounding atmosphere, and so it begins to float upward.  As the hot air rises through the troposphere, the pressure around it drops, because there is less air and more available space to fill.  The volume of the hot air expands as a result, but this expansion progressively drains the heat from the air, through a process called 'adiabatic cooling.'  In the end, the air pocket is dispersed, its temperature dropping far below the air temperature at the Earth's surface.  This process happens constantly, all over the atmosphere, and is one factor contributing to the overall 'lapse rate' of the atmosphere (the rate of temperature decline as altitude increases).
503794
They take excess moisture out of the air.  They pull in the air from one end, take out the wwater which collects in a tub (which needs to be emptied), and lets out drier air.
680049
Great question, and you have the answer within the question!   It's air pressure that allows an airplane to rise into the air.  The secret is to get more pressure pushing up than pushing down.\n\nMany years ago scientists discovered that fast moving air exerts less pressure than slower air.  So you have to get the air on top of the plane's wing moving faster than the air on the bottom of the wing.  How do you do that?  Curve the top of the wing!   Then the air has to travel farther (to go over the curve), so it's going to go faster.  The bottom of the wing is flat - slower air, more pressure up against the wing.  \n\nThe difference between the two pressures - under and over the wing - is enough to make even a huge 747 go up into the air - if the air is flowing fast enough.  That's why an airliner has go almost 200 km/hr (or well over 100 mph) to before it starts to fly.
849875
Sorry , can you please explain more?
804765
Because it's less dense. Temperature affects density. And the less dense a gas is, the lighter it becomes, so to speak. Therefore it rises over cold air.
858762
Probably because some of the air particles become trapped in your clothes, so they aren't completely released in the air to disperse.
163247
The faster they move, the warmer the liquid gets. Then they make the liquid evaporate because they mix with the molecules of the air.
61716
The air inside the vehicle is moving the same speed as the vehicle. To the fly it's still air, unless a window is open, then the fly may not be able to fly normally.
784557
It's your body trying to absorb more oxygen into your bloodstream, allowing for more energy.
367999
It weighs the amount that the air inside it weighs.
171929
Birds air sacs allow them to have a larger "lung" capacity, therefor if humans had air sacs we would be able to run the mile in a shorter time b/c our bodies would theoretically be able to take in more oxygen.
981593
they come to the surface to get air also