Water pollution is a major global problem that affects human health and ecosystems. It is suggested to be the leading cause of deaths worldwide, with over 14,000 people dying daily due to lack of access to clean water and sanitation. Major sources of water pollution include inadequate treatment of industrial and residential waste, as well as runoff from agriculture and other land uses. The hydrosphere refers to all water on, under, and over the surface of the planet, including oceans, lakes, rivers, groundwater, and water in the atmosphere. The hydrological cycle driven by energy from the sun is the continuous movement of water within and between these reservoirs.