Europe Crossword

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Across
  1. 4. low lying area drained to create new farmland
  2. 5. underground water highway; connects Eng&France
  3. 6. military alliance; cooperation on a global basis
  4. 7. a person who comes to a new country to live
  5. 8. permanently frozen layer of soil
  6. 10. one who flees his or her home for safety
Down
  1. 1. precipitation carrying dissolved acids
  2. 2. steep-sided glacial valley filled by seawater
  3. 3. warming gradual warming of the Earth
  4. 5. rich black topsoil found in N. Europe
  5. 9. formed after WWII for economic cooperation in Europe