Multiple choice

In bread-making industry, ________ is used as a source of carbon dioxide.

  1. sugar

  2. dough

  3. yeast

  4. water

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the baking industry, yeast is added to dough to perform fermentation. As the yeast consumes sugars, it releases carbon dioxide gas as a byproduct. This gas creates bubbles in the dough, causing it to rise and become light and fluffy.