Building Construction
Slate

Possesses good water absorption capacity
Splits into thin sheets along its bedding planes
Has a smooth surface and contains alumina and silica
Is a metamorphic rock

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
Gravels

All listed here
Are cohesionless aggregates
Never swell when they come into contact with water
Vary in size between 2 to 20 mm

ANSWER DOWNLOAD EXAMIANS APP