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.
D.etching hope that helped
Answer:
A
Explanation:
Moai were created around 1400 and 1600 AD
You can do nae nae and do the whole routine, but add in the roll or spin at any moment you would like to.
not sure if you can use the mac-arena, but if you can go the dance and add in little movements like a roll, pencil turn, clapping, or something simple.
i hope this helped and if you have and questions comment and ill help you figure more out (:
