Question

Which one the following sets shows the correct soil order in sequence of increasing age?

A Alfisol, ultisol, entisol, mollisol Correct Answer Incorrect Answer
B Entisol, alfisol, ultisol, mollisol Correct Answer Incorrect Answer
C Entisol, ultisol, mollisol, alfisol Correct Answer Incorrect Answer
D Entisol, mollisol, alfisol, ultisol Correct Answer Incorrect Answer

Solution

Soil orders in sequence of increasing degree of development are Entisols, Inceptisols, Aridisols, Mollisols, Alfisols, Spodosols, Ultisols, and Oxisols.  Histosols and Vertisols may appear in any of the above at any time during their development.

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