SOIL FORMATION AND POLLUTION

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Across
  1. 3. reacts with carbonate minerals in the rock
  2. 4. a light and moisture retentive soil type with a high fertility rating
  3. 7. made up of igneous, sedimentary or metamorphic rock
  4. 9. when oxygen reacts with the minerals of a rock
  5. 10. is light, warm, dry and tend to be acidic and low in nutrients.
Down
  1. 1. results from the alternating freezing and thawing of water
  2. 2. get rid off insects and bacteria from the crop
  3. 5. fertile soil
  4. 6. it consists of slightly broken-up bedrock
  5. 8. a heavy soil type that benefits from high nutrients