+A **leavening agent** is a substance that introduces gas into a [Dough](/wiki/dough) or batter. This gas expands during baking, causing the mixture to rise and creating a light, porous texture. Common examples include [Yeast](/wiki/yeast) and baking powder, transforming dense mixtures into airy delights.
+## See also
+- [Baking Powder](/wiki/baking_powder)
+- [Gluten](/wiki/gluten)
+- [Bread](/wiki/bread)
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