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Although many would suggest oxygen, and this answer is true for all larger animals, a review of all living organisms suggests some that live in the absence of oxygen:
- anaerobes some of which substitute sulfur for oxygen in their life processes
- facultative organisms
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoOxygen! simple's we need no other chemical in the air apart from it apart from in very small quantities, that are most often found in our food
Wiki User
∙ 15y agoThe essential atmosphere gas that is essential for human survival is oxygen.
Wiki User
∙ 14y agoAir, (and specific: oxygen)
SARA RAHAMAN
OXYGEN
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It contains a gas noted for having a sharp clean smell?
Stratosphere is the layer of atmosphere which contains the gas noted for having sharp clean smell. The name of the gas is ozone and is present as ozone layer in the atmosphere.
Fuel-cell cars use hydrogen gas and release what into the atmosphere.?
Water vapour.
What kind of gas contains heilium?
Helium is a specific gas in it's own right and the first on the periodic table. It can be blended with any other gas and is a small percentage of the gasses in our atmosphere.
What fraction of the earths atmosphere is carbon mioxide?
Earth's atmosphere is about 0.035% CO2. Since the atmosphere is just a thin layer of gas surrounding the earth, CO2 is a much, much smaller fraction of the earth itself.
Why hydrogen gas collected by upward delivery?
Because hydrogen gas is less dense than air(mostly nitrogen and oxygen), and the less dense gas flows to go above the more dense(and escape the atmosphere).
What nonmetal gas is essential for your' survival?
Chlorine.
What gas in the atmosphere important to respiration?
The essential gas is oxygen...
Which gas in the atmosphere is essential for breathing?
oxygen
Why is ozone as important gas in the atmosphere?
The ozone gas is very important for survival for human life. It is because protects us from the harmful UV rays.
A common gas in your atmosphere essential for plants?
nitrogen
What is the colorlessodorless tasteless gas that we breathe in?
Oxygen is the gas we breathe. It is colorless, odorless, and tasteless. It is essential to humans' survival.
What gas is released into the atmosphere by most human proccesses?
This gas is carbon dioxide.
When the water evaporates what does it become?
Gas. The vapors freely travel through the air and eventually disappear.
What gas is more important in the heating of the atmosphere?
Carbon dioxide (CO2) is the main gas produced by human activity that is causing the atmosphere to grow warmer.
Why is O2 essential to life?
Another critical gas is oxygen gas (O2). Much of life on this planet is aerobic, meaning oxygen is required for survival. Oxygen serves as a key constituent in the process that releases the energy stored in food.Oxygen is not essential to all life. In fact there are some organisms that die in the presence of oxygen. There was once a time when there was no oxygen in our atmosphere and only anaerobic organisms lived. Water is essential to all known life but not oxygen.
Which gas forms less than one percent of the atmosphere but is essential to life?
carbon dioxide
What is the most abundant gas in the atmosphere that neither helps nor harms us to breathe?
Molecular nitrogen gas, N2, is 78% of Earth's atmosphere and does not affect human respiration in any negative way.Molecular nitrogen gas, N2, is 78% of Earth's atmosphere and does not affect human respiration in any negative way.
