Name and define the main component of many commonly used types of glass

Silica is the main component usually found in glass. Silica is a chemical compound most commonly found in sand or quartz.

Explanation:

honestly g o ogle helped me for this one

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)

i think it's but if you get it wrong its not my fault : )