Saturday Crossword

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Across
  1. 2. careful in spending or using something
  2. 3. a strong feeling of emotion especially joy
  3. 6. being of use, helpful
  4. 7. necessary
  5. 8. to harm by contact with something undesirable
Down
  1. 1. to tame, to bring plants or animals under human control
  2. 2. possible
  3. 4. not changing
  4. 5. able to survive under bad conditions