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While baking cakes, yeast reproduces rapidly and produces ___ gas.

  • A.Hydrogen
  • B.Oxygen
  • C.carbon dioxide
  • D.nitrogen

Answer: C

Correct answer: carbon dioxide

Yeast ferments the sugars in the batter and releases carbon dioxide, which is trapped as bubbles and makes the cake rise. The alcohol produced alongside it evaporates in the oven.

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