5.1

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Across
  1. 3. large pores; poor water holding capacity & low in nutrients
  2. 6. rich in organic matter like decomposing leaves and dead plants
  3. 8. (A Horizon) most fertile layer, crucial for plant growth; rich in humus
  4. 10. very small pores; hold water & resist drainage; poor aeration; minerals bind nutrients well
Down
  1. 1. A dark brown or black substance found mostly in topsoil / A horizon
  2. 2. (R Horizon)This is the solid, unweathered rock beneath the soil profile
  3. 4. a diagram used to classify soils based on the percentages of sand, silt, and clay they contain
  4. 5. A complex mixture made up of inorganic matter, organic matter, water and air
  5. 7. (balanced mixture) high primary productivity, considered the best for agriculture
  6. 9. (B Horizon)contains minerals that have been leached, or washed down, from the topsoil