What type of soil is referred to as silt?

Silt refers to a type of soil that is characterized by its fine particles, which are smaller than sand but larger than clay. It typically has a smooth texture and is highly fertile, making it conducive to plant growth. Silt is often found in environments like river bottoms, where sediment settles and accumulates over time as water flows and deposits material. This environment is ideal for silt because the constant flow of water can carry the fine particles to a specific location, resulting in a rich, nutrient-dense soil that supports diverse vegetation.

In contrast, the other types of soil mentioned in the choices differ significantly in texture, composition, and location, which do not align with the characteristics of silt.