apparently 90% air exhaled is breathed out and the other 10% is inhaled
Yes
Nitrogen - it forms approximately 80% of the atmosphere.
When animals exhale, they release a gas called Carbon Dioxide (CO2) which can be lethal to animals if the gas is present in large quantities. Through the process of photosynthesis plants absorb carbon dioxide from the atmosphere and release oxygen as a byproduct. This helps animals because they need oxygen in order to breathe.
Many exercises are designed to help a person breathe. The most effective is just to simply intake large breaths and exhale slowly. This not only helps with lung capacity, but it also is a great stress reliever.
Oxygen, we pretty much breathe and exhale the complete opposite gases that plants do. Most green plants take in carbon dioxide and produce oxygen.
Becuase they are eather too hot, cold, have poisonus gasses, or don't have an atmosphere we can breathe.
In the Earth's Atmosphere; Nitrogen, this makes up about 78% of the Air we breathe.
The atmosphere smelt so bad, they couldn't breathe. Most of them died.
We have the most water, and we have a adequate atmosphere that hold oxygen and carbon dioxide for living things to breathe in.
78% of the air that we breathe is nitrogen gas.
Nitrogen which makes up about 78 percent of the atmosphere.
If there were no plants, humans would die, along with most oxygen-breathing species. Since plants breathe in the carbon dioxide we exhale, without them, we would die.