Natural Resources

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Across
  1. 4. Energy , energy that comes from the earth.
  2. 5. , can be replaced in our lifetime.
  3. 7. , layer of dirt close to the surface of the earth.
  4. 8. Resources , naturally found on earth.
Down
  1. 1. , used items into new items.
  2. 2. , anything that dirties the earth.
  3. 3. , everyone put less things than the earth.
  4. 6. , can't be replaced quickly enough.