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Which horizon do only old soils and forest soils have?

User Vindic
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2 Answers

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Answer:The O horizon is an organic layer made of wholly or partially decayed plant and animal debris. The O horizon generally occurs in undisturbed soil, since plowing mixes the organic material into the soil. In a forest, fallen leaves, branches, and other debris make up the O horizon.

Explanation: Hope this helped! :P

User Silvenon
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Answer:The O horizon is an organic layer made of wholly or partially decayed plant and animal debris. The O horizon generally occurs in undisturbed soil, since plowing mixes the organic material into the soil. In a forest, fallen leaves, branches, and other debris make up the O horizon.

Explanation: Hope this helped! <3

User Paul Parker
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