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Question
Which soil horizon contains humus?
Which soil horizon contains humus?
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Solution
The correct option is D A- Horizon
The uppermost horizon of soil is generally dark in colour because it contains humus in high amounts. This is the topsoil and is called A-Horizon.
The uppermost horizon of soil is generally dark in colour because it contains humus in high amounts. This is the topsoil and is called A-Horizon.
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