Question

which of these gases does not change between inhalation and exhalation a) oxygen b) nitrogen C) carbon dioxide d) watervapour​

Answer 1

The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.

HENCE BOTH CARBON DIOXIDE AND OXYGEN DOES NOT CHANGE...

Answer 2

Answer:

Answer. The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide. HENCE BOTH CARBON DIOXIDE AND OXYGEN DOES NOT CHANGE...13