Plant Extinction

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Across
  1. 2. an expert in or student of the scientific study of plants.
  2. 4. completely
  3. 8. hint
  4. 10. the state of being extremely poor.
  5. 11. becoming apparent or prominent.
Down
  1. 1. a meeting between heads of government.
  2. 3. the state of being open to danger or threat; lack of protection.
  3. 5. cause or allow (something) to be seen.
  4. 6. something that helps somebody or something in a difficult situation
  5. 7. flower
  6. 9. requiring immediate action or attention.