Across
- 5. the complete disappearance of a species
- 6. non-living factors in an environment
- 7. A method of growing plants without soil, using mineral nutrient solutions in water.
- 9. the living parts of the earth
- 12. Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain.
- 14. living factors in an environment
- 15. A rupture in the Earth's crust where molten lava, ash, and gases from below the Earth's surface escape into the air.
- 16. The process by which towns and cities are formed and become larger as more people begin living and working in central areas.
- 17. A garden that grows upward (vertically) using a trellis or other support system rather than on the ground.
- 18. The average weather conditions in an area over a long period.
- 19. the parts of the earth covered in water
Down
- 1. Process where organisms better adapted to their environment tend to survive and reproduce.
- 2. A climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean.
- 3. The process by which natural forces move soil, rock, or dissolved material from one location to another.
- 4. The scientific study of plants.
- 8. Change A change in global or regional climate patterns, particularly a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
- 10. The ability to maintain or improve standards of living without damaging or depleting natural resources for the future.
- 11. Organisms in an ecosystem that produce biomass from inorganic compounds.
- 12. A natural event that has the potential to cause harm to humans or property.
- 13. The variety of life in the world or in a particular habitat or ecosystem.