Water conservation is important for a number of reasons, including ensuring a sustainable supply of water for future generations, preventing water pollution, and protecting aquatic ecosystems.

Desalination is a process of removing salt from seawater, which is not a method of water conservation.

Water conservation has a positive impact on biodiversity by helping to protect aquatic ecosystems and the species that depend on them, reducing the risk of water pollution, and helping to maintain the water cycle.

A water-efficient landscape is one that uses water wisely, and a landscape with a variety of plants, including trees, shrubs, and groundcovers, is an example of a water-efficient landscape.

Water recycling, water reuse, and greywater reuse are all terms for the process of reusing water that has already been used.

A greywater reuse system is a system that collects and reuses water from sinks, showers, toilets, and washing machines.

Desalination, reverse osmosis, and distillation are all processes for removing salt from seawater.

A desalination plant is a plant that uses reverse osmosis, distillation, or a combination of both to remove salt from seawater.

Water conservation, water efficiency, and water management are all terms for the process of using water more efficiently.

A water-efficient appliance is an appliance that uses less water than a conventional appliance.

Rainwater harvesting, rainwater collection, and rainwater storage are all terms for the process of capturing and storing rainwater.

A rainwater harvesting system is a system that collects rainwater from rooftops, driveways, sidewalks, gutters, and downspouts and stores it in a cistern.

Phytoremediation, phytoextraction, and phytoremediation are all terms for the process of using plants to remove pollutants from water.

Duckweed, water hyacinth, and cattail are all plants that can be used for phytoremediation.

Irrigation water management, irrigation efficiency, and water conservation in irrigation are all terms for the process of reducing the amount of water used for irrigation.