1. 2. ...is a large area of land covered with trees or other woody vegetation.
  2. 4. ...is the collection of techniques, skills, methods and processes used in the production of goods or services or in the accomplishment of objectives
  3. 5. ...is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms
  4. 6. ...is a housing facility for people with disabilities.
  5. 8. This describes the continuous movement of water on, above and below the surface of the Earth.
  6. 10. ...is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams.
  7. 12. ...is any contiguous living system, such as an animal, plant, fungus, or bacterium.
  8. 15. ...is the flow of gases on a large scale.
  9. 16. ...is to use an item again after it has been used.
  10. 18. ..are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs
  11. 19. ...is the third planet from the Sun.
  12. 21. ... is the act of preserving, guarding or protecting; wise use.
  13. 22. ...smoke and fog.
  14. 24. ...is electromagnetic radiation within a certain portion of the electromagnetic spectrum
  1. 1. ...is the practice of killing or trapping any animal, or pursuing or tracking it with the intent of doing so.
  2. 2. ...is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits
  3. 3. ...is, according to one definition, land capable of being ploughed and used to grow crops.
  4. 4. ...is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere
  5. 7. ...is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions
  6. 9. ...is the statistics of weather, usually over a 30-year interval.
  7. 11. ...is the "biological foundations that lie at the very epicenter of the study of both communication andsignification in the human [and non-human] animal".
  8. 13. ...is a mixture of minerals, organic matter, gases, liquids, and countless organisms that together support life on Earth.
  9. 14. ...is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes
  10. 17. ..encompasses all living and non-living things occurring naturally on Earth or some region thereof
  11. 20. ...are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body
  12. 23. ...is the name given to the Earth's atmosphere