Final answer:
Tempera paint uses eggs as a binder.
Step-by-step explanation:
The painting medium that uses eggs as a binder is tempera paint. This type of paint is made by mixing pigments with a water-soluble binder, such as egg yolk, to create a smooth and durable paint. The egg acts as a binder to hold the pigments together and allows the paint to adhere well to a variety of surfaces.
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