Chernobyl Disaster

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Across
  1. 3. 31 of it
  2. 4. Radioactive material
  3. 6. chances increased with radiation
  4. 8. The reactor was covered in ______.
Down
  1. 1. Most important danger
  2. 2. 30,000 evacuated from here
  3. 5. Fuel
  4. 7. "fundamentally faulty, having a built-in instability"
  5. 9. Model name