Question

What common substance found on the surface of the earth is melted to make glass?

Answer 1

`SiO_(2)`

Step-by-step explanation:

glass is made from silicon dioxide which is sand. The liquid
`SiO_(2)` is used for making sand. silica has a high melting point of about 1710°C. It is found abundantly on earth as sand and also in water, plants and animals

Glass is a material which has various forms of really useful properties. It is easy to shape when molten and cheap to produce.