The hydrological cycle, also known as the water cycle, is the continuous movement of water on, above, and below the surface of the Earth.

Radioactive pollution is not a major type of water pollution as it is primarily associated with nuclear accidents or waste disposal.

Water treatment is the overall process of improving the quality of water to make it suitable for various uses.

Reverse osmosis is a water treatment technology that uses semipermeable membranes to remove impurities and contaminants from water.

Desalination is the process of removing salt and other minerals from saline water to produce freshwater.

Oceans are not a major source of freshwater as they contain saltwater.

Infiltration is the process by which water seeps into the ground and becomes groundwater.

Water recycling is not a major type of water conservation technique as it involves the reuse of treated wastewater.

Denitrification is the process of removing excess nitrogen from wastewater.

Earthquakes are not a major type of water-related disaster as they are primarily associated with tectonic plate movements.

Hydrology is the study of the distribution and movement of water on, above, and below the Earth's surface.

Aquifers are not major types of water storage facilities as they are natural underground layers of rock or soil that contain water.

Evaporation is the process by which water changes from a liquid to a gas.

Wind turbines are not a major type of water-related technology as they are primarily used to generate electricity from wind energy.

Condensation is the process by which water changes from a gas to a liquid.