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.

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