Geo work crossword

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Across
  1. 3. colorless.
  2. 5. flat land found in arctic and subarctic regions.
  3. 6. forest area.
  4. 7. means there is no rainfall
  5. 8. means there is a little rainfall
  6. 9. very old decayed plant material.
  7. 10. the very large plains.
Down
  1. 1. chemicals that kill harmful insects and weeds, ran into it.
  2. 2. continuous extent of land.
  3. 4. permanently frozen ground.