The magma when forced upwards fills vertical cracks or fissures in existing rocks and it then hardens there to form …………… .

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

With reference to Intrusive Igneous Rocks which of the following is incorrect?

1. Batholiths — deep-seated large deposits of igneous rocks like graphite.
2. Hypobyssal Rocks — small rock deposits.
3. Neck — plug at the top of a volcano.
4. Dykes — large deposits of cooled magma on the earth's surface.

The bonding together of compacted sediments by natural bonding materials such as calcium compounds, silica and iron:

1. Compaction
2. Lithification
3. Cementation
4. None of the above

Transported sediments get deposited in layers leading to increased pressure and temperature on the lower layers. Select the correct sequence of processes involved in the lithification of these sediments.

1. Compaction — Evaporation — Cementation.
2. Evaporation — Compaction — Cementation.
3. Evaporation — Cementation — Compaction.
4. Evaporation — Dehydration — Cementation.