sustainability

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Across
  1. 3. another way to create electricity
  2. 5. used in world war 2
  3. 8. when burnt it is very bad for environment
Down
  1. 1. moon
  2. 2. found under the ocean floor
  3. 4. sun
  4. 5. used for cars
  5. 6. a large natural stream of water
  6. 7. use again