Question

to prove that air we breathe out is carbon dioxide​

Answer 1

AS WE BREATHE THE AIR GOES IN OUR LUNGS...AND THEN ALVEOLI CONVERT IT INTO OXYGEN AND UTILIZE IT HENCE WE EXHALE THE REMAINING DEOXYGENATED AIR AND HENCE WE EXHALE CARBON DIOXIDE.

AND FOR MORE INFORMATION LEARN ANATOMY OF HEART.....

YOU WILL UNDERSTAND...
THANKYOU....
MARK AS BRAINLIEST OR ELSE ONLY GET POINTS CLEAR....

Answer 2

Answer:

AS WE BREATHE THE AIR GOES IN OUR LUNGS... AND THEN ALVEOLI CONVERT IT INTO OXYGEN AND UTILIZE IT HENCE WE EXHALE THE REMAINING DEOXYGENATED AIR AND HENCE WE EXHALE CARBON DIOXIDE...and also there are many experiments which can prove tht the air which we give out is carbon dioxide.