What gas is essential for human life?

Answer 1

Technically speakings Humans do not make gas. Humans are the host for symbiotic bacteria which inhabit the gut and stomach, and are vital to the breakdown and absorbtion of nutrients. If you feed this bacteria with food, their digestive process can cause what we call gas or wind. This gas is actually a combination of various gases, like swallowed air and methane from the digestive process. Methane is a particularly combustive gas which can make human wind flammable, even explosive in some extreme cases. Though I don't recommend you test this.

So here's a secret, the bacteria is particularly fond of anything with a high content of sulphur in it. Brocolli, eggs, cabbage, are its favourites. So if you want to avoid turing the air blue so to speak, avoid those types of food.

Answer 2

The main gas that is needed in the process of breathing is Oxygen

Answer 3

Humans breathe the air around us, which is comprised of roughly 78% nitrogen, 21% oxygen, and 1% other.

Answer 4

Typically the gas humans exhale is about 4% to 5% CO2 (carbon dioxide) and 4% to 5% less oxygen than was inhaled.

Answer 5

Our bodies utilize oxygen from the atmosphere.

Answer 6

carbon dioxide

Answer 7

oxygen