Question

    Which of the following soil order is mainly found in

    grassland ecosystems characterized by a thick, dark surface horizon?
    A Entisols Correct Answer Incorrect Answer
    B Inceptisols Correct Answer Incorrect Answer
    C Oxisols Correct Answer Incorrect Answer
    D Mollisols Correct Answer Incorrect Answer
    E Alfisols Correct Answer Incorrect Answer

    Solution

    Mollisols are the soils of grassland ecosystems. They are characterized by a thick, dark surface horizon.  This fertile surface horizon, known as a mollic epipedon, results from the long-term addition of organic materials derived from plant roots.

    Practice Next