What is the excerpt supposed to be
Athena Tacha is an artist born in Greece in 1936 and was one of the first to design and implement environmental site-specific sculpture in the 70s. She has created many permanent public art works throughout the US and she is very famous for her works in environmental public sculpture. The star fountain is consists of numerous glass columns that are illuminated at night by animated LED/RGBs.
Maybe a cappella because it's created with all voices and lacks the help of instruments.
I believe that the answer is true, because of shading is why we see three dimensional objects instead of two dimensional
Hope that helped at least a little
