why is it harder to breath underwater and down the mines?

Answer 1

You can breath underwater? Holyshit!!!

Answer 2

It's harder to breath underwater because of the pressure of the water on your lungs. That's one reason the air tanks are pressurized - to help push the air into your lungs.

At the bottom of a mine, it's because there is less oxygen down there.

Answer 3

I've worked in mines for years,and the only time it was hard to breathe was when the air was restricted from entering my work space. When you consider that air is constantly pumped into any mine,with intake and outtake ventilation,pressure has almost no effect.Water is much denser than air. Try and remember that while attempting to breathe under even a few inches of water.Of course asking a question like that shows that oxygen was never a factor in your existence.

Answer 4

Well, since you can't breath underwater (at anytime at all) and you can breath in mines, I would have to say it is harder to breath underwater.

Answer 5

There is very little oxygen dissolved in water, our lungs are not equipped to extract such a low density. Down mines there is little or no photosynthesis occurring (due to the lack of sunlight), thus plants cannot extract the carbon from the air to give oxygen. Also carbon dioxide is more dense than oxygen, so it tends to settle to the bottom of mines, reducing the oxygen content down there. This means we need to take more breaths per minute to extract the oxygen from the atmosphere, making it harder to breath.

Answer 6

if you descend the pressure is higher. the air cold go thin to. the temperature rises...