Environmental vocab

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Across
  1. 4. A substance that pollutes (eg. sewage, radioactive waste)
  2. 6. The process of removing salt from seawater
  3. 8. To cause dry land to become degraded due to climatic changes and human activities
  4. 9. The deliberate clearance of forest by cutting or burning
  5. 10. Gases that are produced by cars and factories that cause pollution
Down
  1. 1. The production of special sugar-like substances that keep plants alive, caused by the action of sunlight on chlorophyll
  2. 2. The careful preservation and protection of nature such as plants, animals, forests and rivers to prevent them from being spoiled, wasted or lost forever
  3. 3. This happens when something is added to the environment that is harmful or poisonous to living things
  4. 5. Another word for " rain"
  5. 7. The relative variety of flora and fauna of different natural habitats