Which of the following describes the role of erosion in the environment?

Erosion plays a significant role in shaping the environment, and one of its primary impacts is leading to land degradation. This occurs when the top layer of soil, which is often the most fertile, is worn away by wind, water, or human activity. As these topsoil layers are removed, the land loses its ability to support vegetation, ultimately making it more difficult for plants to grow and thrive. This degradation can result in reduced agricultural productivity and increased vulnerability to further erosion and other environmental issues.

While the other options may touch on some effects of erosion, they do not accurately represent the comprehensive consequences associated with it. For instance, erosion may temporarily expose nutrients from deeper soil layers, but its net effect is more detrimental, contributing to long-term land degradation rather than enhancing soil health or holding water effectively.