Environment

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Across
  1. 1. to use something again
  2. 2. to make something less rubbish
  3. 4. a large number of water is covering an area that is usually dry
  4. 5. to watch and help an animal or the environment
  5. 6. to keep safe from injury,harm or destruction
  6. 7. an area where large amount of waste material are buried under the earth
  7. 8. something makes land and sky dirty
Down
  1. 1. to treat things that have already been used so they can be used again
  2. 3. The act of cutting down the trees or burning them