1. Very old granite and metamorphic rocks found in continental crust?

2. Substance having a pH greater than 7?

3. Any water solution that is basic (pH greater than 7) or has less hydrogen ions (H+) than hydroxide ions (OH-)?

4. A topographic rock structure whose shape is concave downwards?

5. A large mass of subsurface intrusive igneous rock that has its origins from mantle magma?

6. A body of sheltered water found in a crescent shaped coastal configuration of land?

7. An extensive deposit of sand and/or gravel in the form of a beach at the back of a bay?

8. A narrow deposit of sand and/or gravel found across the mouth of a bay?

9. The terrestrial interface area in between land and a water body where there are accumulations of unconsolidated sediments like sand and gravel?

10. The lateral movement of sediments on a beach when the angles of swash and backwash differ?