UNIT 2 - ENVIRONMENT

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Across
  1. 3. a change in the earth's weather conditions
  2. 7. a situation in which different things are equal
  3. 8. gases or other substances that are sent into the atmosphere
  4. 9. a gas without smell or colour, often used as a fuel
  5. 10. thick forest that grows in the hot parts of the world
Down
  1. 1. things that exist in nature and can be used by people
  2. 2. damage caused to water,air,...by harmful substances or waste
  3. 4. the protection of the natural environment
  4. 5. a group of animals or plants that have similar characteristics
  5. 6. a chemical substance found in all living things