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9 December, 15:40

Which soil layer contains the most organic matter?

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  1. 9 December, 15:45
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    O Horizon - The top, organic layer of soil, made up mostly of leaf litter and humus (decomposed organic matter). A Horizon - The layer called topsoil; it is found below the O horizon and above the E horizon. Seeds germinate and plant roots grow in this dark-colored layer.
  2. 9 December, 17:05
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    The crust if earth ...
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