Question

Which gas do you think might be present in greater quantities in the air we

breathe out and as compared to air around us? How can this gas be tested for confirmation?​

Answer 1

Answer:

when we exhale, the composition of the air remains almost the same as the air we inhale, only the percentage of carbon dioxide and oxygen changes.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.