If both your ear and your jaw are on the condition of swelling, then it might be a case of an internal swelling of the submandibular lymph nodes which are situated between the ear and the jaw area. It may be caused by infections of the ear,neck or pharynx.
â¢ The word breath is used as noun. â¢ On the other hand, the word breathe is used as verb. This is the main difference between the two words. â¢ The word breath is used in the sense of âair taken in and out during breathingâ. â¢ On the other hand, the word breathe is used in the sense of âtake air into the lungs and then let it outâ. â¢ The word breathe is sometimes used with the expression âhis/her lastâ, and it gives the meaning of âdie.â This is used for both breath and breathe. His last breath, breathed her last.
But the crux of the matter is the oxygen-carbon dioxide tradeoff. Your lungs just aren't as good as you think they are at oxygen exchange. Every time you take a breath, which is 21 percent oxygen, your lungs are only able to extract about a fifth of that oxygen. The rest gets breathed right back out again. There wasn't much carbon dioxide in the air you breathed in: unless you are in a failing submarine or spaceship, it's around 0.04 percent. But when you breathe out, it's still pretty low, about 4 percent. There's not a huge difference between inhaled and exhaled air, chemically speaking.