Stone Argillaceous rocks have their main constituent as

[Pankaj Sharma]

Argillaceous rocks have their main constituent as
1] carbonates of lime
2] clay or alumina
3] silica or sand
4] all of these

 

[Anurag Prasad]

Argillaceous rocks have their main constituent as
1] carbonates of lime
2] clay or alumina
3] silica or sand
4] all of these

clay and alumina

 

[Pankaj Sharma]

Argillaceous rocks have their main constituent as
1] carbonates of lime
2] clay or alumina
3] silica or sand
4] all of these

Right Answer is:
2] clay or alumina