Citation:
Leaching refers to the process in which water-soluble substances, such as minerals or pollutants, are washed away or dissolved and carried downward through soil layers by percolating water.
Water that is stored beneath the Earth's surface in underground aquifers and can be affected by leaching.
The movement of water through soil layers due to gravity.
Soil Erosion: The wearing away or removal of topsoil by natural forces like wind or water, which can contribute to leaching.