Across
- 3. the process or industry of obtaining coal or other minerals from a mine
- 4. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action
- 5. the rigid outer part of the earth, consisting of the crust and upper mantle
- 7. the action of clearing a wide area of trees
- 8. formed through the cooling and solidification of magma or lava
- 10. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust
- 11. Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent
- 12. the process of making an area more urban
Down
- 1. are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface
- 2. the science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products
- 6. tectonics scientific theory that explains how major landforms are created as a result of Earth's subterranean movements
- 9. excessive grazing which causes damage to grassland
- 13. cycle a basic concept in geology that describes transitions through geologic time among the three main rock types