Cells do not require oxygen to perform anaerobic activity
The single most important ingredient in a good beer is high quality WATER. The correct option is D.
The quantity of water in beer is more than 90%. High quality water is the most important ingredient that is required in beer making process.
After water comes barley malt, hops and then yeast respectively.
Here are ways to avoid smoking
1: Not buy smoking products
Yw!