Question

3. Glass is
(a) a flammable substance
(C) sometimes flammable and sometimes non-flammable
(b) a non-flammable substance
(d) none of these​

Answer 1

Answer:

Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenching) of the molten form; some glasses such as volcanic glass are naturally occurring.

Answer 2

A non-flammable substance