Shijin Yuan and Mengyi Zhang

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Across
  1. 1. Cause disorder
  2. 4. Adequate amount
  3. 5. Microscopic organisms
  4. 8. situation Critical circumstance
  5. 9. Gaseous envelope
  6. 10. Severe hunger
Down
  1. 2. Ceased to exist
  2. 3. Long-term viability
  3. 6. Changed from original
  4. 7. stewardship Conservation efforts