Answer:
Leonardo De Vinci, i think thats how you spell the name lol
Answer:
the first one is False because it is the third, sixth, and seventh that are changed.
The second one is true I'm pretty sure.
I hope this helpsss
Explanation:
Tiles (vulcanized) are made of refractory metal oxides and semi-metallic oxides, through the process of grinding, mixing, pressing, glazing, sintering, and forming an acid-resistant porcelain or stone, Decorative materials.