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

Solution(By Examveda Team)

The correct soil order in the sequence of increasing age is: Entisol. Mollisol, Alfisol, Ultisol.

Entisols are known as the soil or recent origin. These are the most abundant soil order, occupying about 16% of the global ice-free land area.

Mollisols are the soils of grassland ecosystems. It has deep, high organic matter, nutrient-enriched surface soil and fertile soil order.

Alfisols are moderately leached soils that have relatively high native fertility. These are primarily found in temperate humid and sub-humid regions of the world.

Ultisols are the oldest soil order and are strongly leached, acid forest soils with relatively low native fertility.