Hydroponics
• Hydroponics is a subset of hydro culture and is a method of growing plants using mineral nutrient solutions, in water, without soil.

Aeroponics
• Aeroponics is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium.

Aquaponics
• Aquaponics is any system that combines conventional aquaculture (raising aquatic animals such as fish) with hydroponics (cultivating plants in water) in a symbiotic environment.