The environment

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Across
  1. 4. adjective something used again
  2. 6. a very large amount of water that covers an area that is usually dry
  3. 7. if a house has this, it has pipes which provide water to its kitchen, bath, toilet etc
  4. 8. a place where waste is buried under the ground
  5. 9. synonym of "die out"
Down
  1. 1. the process of making air, water, soil etc dangerously dirty and not suitable for people to use
  2. 2. the cutting or burning down of all the trees in an area
  3. 3. to put used objects or materials through a special process so that they can be used again
  4. 5. type of energy that replaces itself naturally