Which type of soil exhibits significant cohesion when submerged?

Cohesive soil is characterized by its ability to adhere to itself and exhibit significant strength and stability, particularly when submerged in water. This type of soil, which includes clay and certain silt types, has fine particles that create bonds due to moisture, resulting in increased cohesion. When submerged, the water tends to fill the spaces between the soil particles, which can enhance the bonding effect and overall stability.

In contrast, dry soil lacks moisture content, making it granular and less cohesive. Cemented soil, which contains bindings like calcium carbonate, can provide strength but does not rely on water for cohesion in the same manner as cohesive soil. Fissured soil has cracks or voids that can lead to instability when saturated, as the fissures may allow water to drain and reduce overall cohesion. Therefore, cohesive soil is the most appropriate answer in this context, as it maintains its adhesive properties even when fully submerged, showcasing its significant cohesive qualities.