Mention two important roles for hydrochloric acid in the stomach.

1.)The gastric juice

             2.) The  acidic gastric

Explaining: The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.

Hope this helps. :)

there really is life in the deepest part