Teaching JKPSC Lecturership Mock Test Series 2024-25 General Knowledge Geography (World Geography) Geomorphology
What is a coarse-grained, dark-coloured, intrusive igneous rock that is widely used as a concrete aggregate, road base material, and crushed stone for railroad ballast?
1
Quartzite
2
Conglomerate
3
Gabbro
4
Sandstone