Answer:
Types:
Pit latrine.
Trench latrine.
Aqua privy.
Most basic.
Explanation: The Sulabh toilet is a twin-pit system that composts waste on-site. The two leach pits retain solid matter and allow the liquid to leach and gases to disperse into the ground. Once one pit is filled, waste is diverted to the second pit. This dual-system allows adequate time for the waste to decompose into fertilizer.