Answer :
The question describes a hazardous practice that should be avoided in the home.
Areas of the glass having ink, marker, or Post-its on them can cause uneven heating
of the glass, leading to uneven expansion and, sooner or later, fracture of the glass.
Areas of the glass having ink, marker, or Post-its on them can cause uneven heating
of the glass, leading to uneven expansion and, sooner or later, fracture of the glass.
