Environment

3. a sudden violent movement of the Earth's surface, sometimes causing great damage
5. the power from something such as electricity or oil, which can do work, such as providing light and heat
8. an extremely large wave caused by movement of the earth under the sea, often caused by an earthquake (= when the Earth shakes)
9. a large amount of water covering an area that is usually dry
10. the general weather conditions usually found in a particular place
11. a long period when there is little or no rain
12. a mountain with a large circular hole at the top through which lava (= hot liquid rock), gases, steam and dust are or have been forced out

1. the process by which land changes into desert
2. the air, water and land in or on which people, animals and plants live
4. the cutting down of trees in a large area; the destruction of forests by people
6. matter or material of any type, often that which is left after useful substances or parts have been removed(synonyms: rubbish, garbage, trash)
7. damage caused to water, air.... by harmful substances or waste