Environment

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Across
  1. 4. to make less rubbish
  2. 5. to watch and help an animal or the environment
  3. 6. to use something again
  4. 7. something making land, water are sky dirty
  5. 8. which is called as farmers friend?
  6. 9. An Area of land where large amounts of waste materials are buried under the earth
Down
  1. 1. a large number of water covering an area that is usually dry
  2. 2. The act of cutting down or burning the trees in areas
  3. 3. to treat things that have already been used so they can be used again
  4. 5. to keep safe from injury, harm, or destruction