What term describes solid material transported by natural forces such as air or water?

The term that describes solid material transported by natural forces such as air or water is "sediment." Sediment consists of particles that have been eroded from their original location and carried away by natural forces, typically consisting of rock fragments, minerals, and organic materials. This process is significant in geomorphology as it leads to the formation of various landforms and can impact water quality in aquatic environments.

Sediment can accumulate in bodies of water, creating layers that contribute to the overall health of ecosystems. Its transport and deposition play critical roles in the water cycle and sedimentary processes. Understanding sediment is essential for effective grading, drainage, and stormwater management, as it influences erosion control and the design of sustainable landscapes.

Other terms like "debris," "soil erosion," and "organic matter" refer to different concepts. While debris may include larger pieces of material that are often characterized as waste or leftover material from natural events, soil erosion speaks specifically to the process of soil being worn away rather than the material itself. Organic matter refers to decomposed plant and animal material vital for soil health but does not encompass the transport aspect, which is intrinsic to the definition of sediment.