Read the given extract and answer the questions that follow: In ancient India, along with the sophisticated hydraulic structures, there existed an…

Read the given extract and answer the questions that follow: In ancient India, along with the sophisticated hydraulic structures, there existed an extraordinary tradition of water-harvesting system. People had an in-depth knowledge of rainfall regimes and soil types and developed wide ranging techniques to harvest groundwater, rainwater, river water and flood water in keeping with the local ecological conditions and their water needs. In hilly and mountainous regions, people built diversion channels like the'kuls'and'guls'of Western Himalayas for agriculture. Rooftop rainwater harvesting was very commonly practised to store drinking water, particularly in Rajasthan. ($\displaystyle 36.1$) Mention any two methods of traditional water-harvesting used in India. ($\displaystyle 36.2$) How do people of Rajasthan utilise rainwater? ($\displaystyle 36.3$) Explain any two benefits of rainwater harvesting. $\displaystyle 2 \times 1=2$