The primary role of groundwater in the hydrological cycle is to serve as a crucial reservoir for sustaining both terrestrial and aquatic ecosystems. As water infiltrates the soil, it replenishes underground aquifers, which are vital for drinking water supplies and irrigation. Groundwater also supports surface water bodies, contributing to streams, rivers, and wetlands by maintaining their flow during dry periods. This resource is essential for agricultural productivity, the health of natural habitats, and the overall resilience of ecosystems in the face of climate variability.