How is tempera paint made?

Tempera is traditionally created by hand-grinding dry powdered pigments into a binding agent or medium, such as egg yolk, milk (in the form of casein) and a variety of plant gums. The most common form of classical tempera painting is "egg tempera".

Explanation:

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane