Question 7 - Past Year Questions - 3 marks - Chapter 3 Class 10 Geography - Water Resources - Geography

Explain the working of underground tanks as a part of roof top rainwater harvesting system practised in Rajasthan.

Answer:

Points to Remember 

• houses traditionally had underground tanks or tankas
• tanks could be as large as a big room
• part of the well-developed rooftop rainwater harvesting system
• built inside the main house or the courtyard.
• connected to the sloping roofs
• Rain stored in underground ‘tankas’ .
• first spell of rain not collected
• subsequent showers were then collected .
• rainwater can be stored in the tankas

*Write any 3 points 

Answer to be written in the exam

1. In the semi-arid and arid regions of Rajasthan , particularly in Bikaner , Phalodi and Barmer , almost all the houses traditionally had underground tanks or tankas for storing drinking water .
2. The tanks could be as large as a big room ; one household in Phalodi had a tank that was 6.1 metres deep , 4.27 metres long and 2.44 metres wide .
3. The Tankas were part of the well-developed rooftop rainwater harvesting system and were built inside the main house or the courtyard. Usually first rain water is not collected to clean the  rooftop and the pipe.