Answer:
Glass is the most common material used to construct lens elements, due to its good optical properties and resistance to scratching. Other materials are also used, such as quartz glass, fluorite, plastics like acrylic (Plexiglass), and even germanium and meteoritic glass.
Answer:
Among the two choices given, in my opinion, the theater art form is better. I feel as though it's more classic and in a more enclosed envionment, it isn't as wild as the festival setting. The festival art form brings about chaos and much more whereas the theater brings a sense of peace and intimacy.
Explanation:
