oxygen is 20% of the air you breathe
Oxygen is the gas that accounts for about 20 percent of Earth's atmosphere.
No. This is impossible because we breath it in.
Neither, Nitrogen is 79%, Oxygen is 21% and Carbon dioxide is 0.04%. Carbon dioxide levels have risen from 0.028% at the beginning of the Industrial Revolution, when we began burning fossil fuels (coal, oil and natural gas).
Nitrogen is a colorless, odorless, and tasteless gas at room temperature of 20 degrees Celsius. It is the most abundant element in Earth's atmosphere, making up about 78% of the air we breathe. Nitrogen is essential for life and is commonly used in fertilizer production and various industrial applications.
No, we exhale carbon dioxide-rich air from our lungs. When we breathe in, we take in oxygen from the air, which our bodies use for various functions. As we exhale, we release carbon dioxide as a waste product from the process of cellular respiration.
Oxygen
Oxygen
Oxygen
20.95% is oxygen
Oxygen
Oxygen is the gas that accounts for about 20 percent of Earth's atmosphere.
Oxygen is a non-metal gas that makes up about 20% of normal air.
Oxygen
The air we breathe is: about 78% Nitrogen about 20% Oxygen about 1% Argon and the rest lots of other chemicals in tiny amounts.
Oxygen gas makes up just over 20% of the air around us.
Nitrogen, you can't survive on it obviously but you breath it in every day it is the most abundant gas in the atmosphere followed by oxygen I think.
The difference - is in the proportion of the gasses present. The air we breathe in contains about 20% Oxygen. What we breathe out has about 16% oxygen and high levels of carbon dioxide.