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Soil Composition

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Notes on the basics of soil composition Geoecology option Leaving Cert
helicon
Mind Map by helicon, updated more than 1 year ago
helicon
Created by helicon over 9 years ago
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Resource summary

Soil Composition
  1. What is soil made up of?
    1. Mineral Matter
      1. Rock particles from the bedrock and weathered parent rock
      2. Air
        1. Found in the pore spaces between rock grains
        2. Water
          1. Found in pore space between rocks
            1. Dry Weather?
              1. Forms a thin film around soil grains
              2. Wet weather?
                1. Fills the pores in the soil
            2. Humus
              1. A black sticky gel produced by decaying organic matter
              2. Living Organisms
                1. Such as beetles, earthworms, fungi and bacteria
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