What are the three main branches of natural science?
What is a degree in natural sciences?
What is a natural science course?
Is sociology a natural science?
Technique of Fresco (Frescoes) painting.
"The first certain work by Perugino is a Saint Sebastian, at Cerqueto, near Perugia. This fresco (a mural painted on wet plaster with water-soluble pigments) dates from 1478 and is typical of Perugino’s style."
They are used in order to eat your food