Question 30

Wetlands are likely to include vegetation in saturated soil.

Wetlands are characterized by the presence of water that saturates the soil, which leads to the proliferation of specific types of vegetation adapted to such conditions.

A) Prime farmland

Prime farmland is typically defined as land that is highly suitable for agricultural production, characterized by well-drained soils with good nutrient content. This is inconsistent with the nature of wetlands, which feature saturated soils that are often not ideal for traditional farming practices.

B) Navigable waters

Navigable waters refer to bodies of water that are deep and wide enough for vessels to navigate. While wetlands may include some bodies of water, they are not primarily defined by navigability; rather, they are characterized by saturated soils and specific vegetation types.

C) Vegetation in saturated soil

Wetlands are indeed defined by the presence of vegetation that thrives in saturated soil conditions. This unique ecosystem supports a diverse range of plant species that are adapted to low oxygen levels in waterlogged soils, making this option accurate.

D) Soils suitable for a septic system

Soils suitable for a septic system are typically well-drained to allow for proper filtration and absorption of effluent. Wetland soils, however, are often too saturated and may not provide the necessary drainage, thus making this option incorrect.

Conclusion

The correct choice is C, as it accurately reflects the defining characteristic of wetlands, which is the presence of vegetation in saturated soil. All other options either describe unrelated features or conditions that do not align with the typical environment found in wetlands.