Correct option is D
Seepage refers to the downward and lateral (sideways) movement of water into the soil from a source like canals, reservoirs, or irrigation channels. It happens when water slowly escapes through the soil pores, affecting both the downward and sideways directions.
It occurs from canals, ponds, reservoirs, and irrigation structures.
Helps in groundwater recharge but also causes loss of irrigation water if not controlled.
Affected by soil texture, structure, and water pressure.
Additional Information (Other Options):
Permeability: Refers to the ability of soil to transmit water or air vertically; it measures how easily water can pass through soil.
Percolation: Refers to the vertical downward movement of water through soil layers, especially in the context of water soaking deeper after rainfall or irrigation.
Leaching: Refers to the downward movement of dissolved substances (like nutrients or chemicals) with water through the soil profile, potentially leading to nutrient loss.