Define soil erosion. Give its causes, effects and preventive measures.

Soil erosion is the wear of top fertile soil by wind or water is known as soil erosion.

Causes of soil erosion-

● Top soil is blown away by high speed wind.

● Deforested land losens the soil as the roots that hold the soil together no longer exist. This loosened soil gets eroded away by wind and water easily.

● Top soil is often carried away by flowing rainwater.

Effects of soil erosion are-

● Reduction in growth of new plants as the topsoil erodes away and the remaining soil is not that fertile to support growth.

● Soil erosion leads to contamination of water sources and pollutes the public areas.

Methods to prevent soil erosion are-

● Stopping deforestation and planting more and more trees so that roots bind to the soil and hold the soil together, thus preventing it from being eroded away.

●Making windbreakers from trees on the land to prevent erosion of soil by wind blowing across it.