SOIL!

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Across
  1. 6. The bottom of minecraft
  2. 9. Very bad for the soil
  3. 10. You can make something with this
  4. 11. Mini life
  5. 14. Can be poisonous
  6. 15. Sounds like a dip
  7. 16. This thing grows from soil
Down
  1. 1. The second layer full of roots
  2. 2. You wouldn't find much life here
  3. 3. Most bugs live here
  4. 4. Slimy and wriggly
  5. 5. You can make 15 with this
  6. 7. Halfway to a dip
  7. 8. Go away
  8. 12. You need it
  9. 13. Salt is one type