It would substantially increase as they are responsible for 1/3 of the earths Oxygen and without them "eating" up the CO2 there would be an increase of it in our Atmosphere and a decrease in Oxygen <span />
Exploration, mining and processing
Your answer is C.
Not all systems perform the same function or use the same organs.
Alveoli are part of the reparation system found in the lungs. They are covered in capillaries. In Alveoli, oxygen diffuses from the air into the blood vessels surrounding the alveoli and carbon dioxide from the body diffuses from blood into the alveoli’s air spaces. Alveoli clump together and form sacs.
