Answer:
C) respiration
C) carbon dioxide
B) respiration
Step-by-step explanation:
In the process of respiration at cellular level, glucose is com busted in the presence of oxygen to produce carbon dioxide and water.
The chemical equation is as follows -
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
The carbon dioxide released at the end of respiration is responsible for producing the foam especially during the cell respiration in anaerobic condition.
Hence, correct options are
C) respiration
C) carbon dioxide
B) respiration