Building Materials
Acrylic sheets

All of these
Possess the light transmission rate of 93%
Are generally unaffected by most household detergents
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness

ANSWER DOWNLOAD EXAMIANS APP

Building Materials
The thermosetting plastic

Chars at 343°C
At 127°C to 177°C permanently set and further application of heat does not soften it
Becomes rigid when moulded at suitable pressure and temperature
All listed here

ANSWER DOWNLOAD EXAMIANS APP