Why it is difficult to breathe up on a mountain at 6000m above the sea level?

Question

explain the answer refer to the pressure and how become that difficult

Answer 1

the density of air and air pressure decreases at higher elevations. this means that there is less air, and your body needs to breathe in more to get as much oxygen as you would get at lower elevations.

Answer 2

The number of molecules available for use by the body that can be sucked in during each breath is much lower and the partial pressure of the O2 to get into the blood stream is also lower, slowing the replacement. Think of it on the lines of each breath at sea level pulls in a pint of O2 and at 6000m pulls in a half cup (I made the quantities up.)

Answer 3

since the air is thinner than you are used to, breathing in normally at that altitude would not supply enough oxygen to support your body, you would have to breath faster to get the oxygen amount you are used to. This is difficult because one would tire easier from having to breath so much more to do any action than they are used to. Pressure is only related in that the pressure at higher altitudes is less (less atmosphere...)

Answer 4

The pressure is a factor, but oxygen content of the air, at higher altitudes, drastically falls. Thats the main problem.

Answer 5

Because all the air molecules are pulled closer to the earth, so there is less air to breathe. Also, there is less pressure on your body, so you feel lighter.

Answer 6

Air is thinner and you need more red blood cells to compensate