Answer:
Bakers use yeast as a leavening agent in baking bread and other bakery products.
The yeast ferments the sugar present in the dough and converts it into ethanol and carbon dioxide.
Glucose or sugar + bakers yeast → ethanol + carbon dioxide
Carbon dioxide causes the dough to rise whereas alcohol or ethanol formed usually evaporates during the baking process.
Thus, the given blanks can be correctly filled up by alcohol fermentation and carbon dioxide.
The water cycle provides fresh water by evaporating salt water because salt can't be picked up when evaporated so you have fresh water in the sky. When it rains, it spreads the water around into groundwater, lakes, steams, etc.
Gas molecules spread out and don't touch each other.
If no pregnancy occurs, the corpus luteum is reabsorbed into the ovary after two weeks and the hormone levels drop; this causes menstruation.
