Our Environment

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Across
  1. 4. The transfer of food energy through a chain from plants to an animal and then to another animal.
  2. 7. The area occupied by a community or species (group of animals or plants), such as a forest floor, desert or sea shore.
  3. 10. To break waste items down into their raw materials, which are then used to re-make the original item or make new items.
  4. 11. when the environment is contaminated, or dirtied, by waste, chemicals, and other harmful substances.
  5. 13. The pattern of weather in a particular region over a set period of time, usually 30 years.
  6. 14. This is the method in which waste can be decomposed and converted into organic matter by burying them in pits. The wastes are composed by the action of bacteria and fungi.
  7. 16. The mass of air surrounding the Earth.
  8. 17. the process by which the complex organic substances breakdown into simpler substances by the action of microorganisms.
  9. 19. Preserving or protecting animals and resources such as minerals, water and plants through planned action.
  10. 20. The activity or process of keeping something valued alive, intact, or free from damage or decay.
  11. 21. The process of planting trees in forest lands to replace those that have been cut down.
Down
  1. 1. The type of waste that comes from our kitchen including food remains, garden waste, etc. It is also known as moist waste. This can be composted to obtain manure. It decomposes itself over a period of time depending on the material.
  2. 2. A community of organisms that depend on each other and the environment they inhabit.
  3. 3. The process by which wind is used to generate electricity.
  4. 5. The gradual increase in temperature of the Earth’s surface caused by human activities that cause high levels of carbon dioxide and other gases to be released into the air.
  5. 6. Living organisms such as trees, herbs, bushes.
  6. 8. The reduction of trees in a wood or forest due to natural forces or human activity such as burning or logging.
  7. 9. Power generated directly from sunlight.
  8. 12. Any living thing, from bacteria and fungi through to insects, plants, animals and humans.
  9. 15. Water that collects or flows underground in the small spaces in soil and rock. It might be a source of water for springs and wells and then used for drinking water.
  10. 18. The portion of Earth and its atmosphere that can support life.