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12 March, 09:44

Which material forms the organic portion of soil

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  1. 12 March, 09:47
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    Mostly organic matter such as decomposing leaves. The O horizon is thin in some soils, thick in others, and not present at all in others. A - (topsoil) Mostly minerals from parent material with organic matter incorporated. A good material for plants and other organisms to live.
  2. 12 March, 10:06
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    Mostly organic matter such as decomposing leaves. The O horizon is thin in some soils, thick in others, and not present at all in others. A - (topsoil) Mostly minerals from parent material with organic matter incorporated. A good material for plants and other organisms to live.
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