What is soil erosion? Explain means of preventing it.

Soil erosion is defined as blowing away of land surface i.e. soil by wind or water.

Soil erosion leads Reduction in growth of new plants as the topsoil erodes away and the remaining soil is not that fertile to support growth. Also it leads to contamination of water sources and pollutes the public areas.

Means of preventing soil from being eroded is practicing terrace farming which slows the running water and thus checks soil erosion. Another means of preventing soil erosion is practicing afforestation i.e. planting of trees on large scale which whill help in binding of soil tightly with the roots.