The transformation of rocks into metamorphic rocks takes place as a result of intense heat and pressure. Given below are the types of metamorphism and the processes involved. Which one is incorrect?

1. Thermal Metamorphism : high temperature.
2. Dynamic Metamorphism : pressure at great depths in the crust.
3. Regional Metamorphism : large scale earth movement.
4. Contact Metamorphism : high pressure below ocean bed.

Study the diagram and identify A, B and C.

1. A: action of agents of weathering B: deposition-sedimentation C: action of heat and pressure
2. A: deposition-sedimentation B: action of agents of weathering C: action of heat and pressure
3. A: deposition-sedimentation B: action of heat and pressure C: action of agents of weathering
4. A: action of heat and pressure B: action of agents of weathering C: deposition-sedimentation

…………… are deep-seated intrusion of igneous rocks.

1. Sills
2. Dykes
3. Laccoliths
4. Batholiths

Your sister had gone camping in Uttarakhand. She was fascinated with the smooth striated rocks she had collected. What type of rocks had she brought home with her?

1. Igneous rocks
2. Sedimentary rocks
3. Metamorphic rocks
4. Both (1) and (3)