CO2 Carbon dioxide
oxygen
These substances are called products in English.
You are wrong! The digestive system produce enzymes and other substances!!!
Tobacco burns to produce various toxic substances. The addictive drug component is nicotine, but other by-products include Carbon Monoxide, Carbon Dioxide and a carcinogenic tar. Not only that, but the smoke paralyzes the cilia in the lungs, the same cilia that sweep the lungs clean of "various toxic substances."
Acids are substances which produce hydrogen ionsin solution.Bases are substances which produce hydroxide ionsin solution.
LUNGS
nerve cell produce protiens
lungs
Carbon monoxide
Sputum
Your lungs.