Asbestos
a) Is a natural fibrous mineral substance
b) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)
c) Contains iron oxide and alumina
d) All of these
Asbestos
a) Is a natural fibrous mineral substance
b) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)
c) Contains iron oxide and alumina
d) All of these