Question

    Humus and the smallest particles of rock form in which

    horizon
    A A-horizon Correct Answer Incorrect Answer
    B B-horizon Correct Answer Incorrect Answer
    C C-horizon Correct Answer Incorrect Answer
    D Bedrock Correct Answer Incorrect Answer

    Solution

    Humus and the smallest particles of rock from the upper layer of soil called topsoil or A-horizon. ·         It is the layer containing the most nutrients for plants. ·         The roots of most plants are confined to this layer. ·         Humus makes this layer porous and fertile.

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