Answer:
Tempera paint is made by mixing egg yolk with water.
It was widely used throughout history because it was cheap.
Explanation:
Because the production of Tempera Paint was very cheap, it was widely used throughout history. It is also fairly easy to obtain: it is created by the mixture of water and egg yolk, along with the pigment. Nowadays, other materials such as glue can be used for the production.
The design of the Sistine Chapel. He painted frescoes on the ceiling.
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