Tankas are a structure of rain water harvesting system that are generally used in which of the following states?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Rajasthan .
Tankas (also spelled taankas or kunds) are a traditional rainwater harvesting system primarily used in the arid and semi-arid regions of Rajasthan, India.
These structures consist of covered, underground, impermeable cisterns that collect rainwater from rooftops, courtyards, or specially prepared catchment areas (locally called 'agor'). The water collected in tankas is typically used for drinking purposes, especially during dry seasons, providing a crucial source of water security for households and communities in a region that experiences low and erratic rainfall.
The design of tankas minimizes evaporation and helps keep the stored water cool and relatively clean. This ancient practice has been perfected over centuries in the Thar Desert region of Rajasthan, making it an integral part of the local lifestyle and water management strategies.