The fermenter is sealed off from the air except for a long narrow vent pipe, which allows carbon dioxide to escape from the fermenter. Since there is a constant flow of CO2 through the pipe, outside air is prevented from entering the fermenter, which reduces the threat of contamination by stray yeasts.
The correct answer is D. description
I think is C that what i think
Answer:
The way a man chooses to live his life directly affects the quality of his life.
Explanation:
