Is glass biodegradable or non-biodegradable?

Answer 1

But glass slowly(in 3-4 yrs) deforms into sand? Sand and Glass are both full of silica.
So i think, sayin glass is made of silica and its non-biodegradable, then so is sand

Answer 2

Glass is not bio degradable as it is made up of silica and not made of any organic matter.

Answer 3

no

Answer 4

it is but it takes 1 million years