Q1. Taanka is a traditional _________ technique common to the Thar Desert region of Rajasthan.
A Agriculture
B Rainwater harvesting Correct
C Animal husbandry
D Agro-industrial work system
Explanation
A taanka is an underground or covered tank used in Rajasthan's arid Thar region to collect and store rainwater, often from rooftops or prepared catchments. That makes rainwater harvesting the precise description. Agriculture is a broader occupation and does not name the water-storage technique. Animal husbandry is common in desert areas, but a taanka is not a livestock-rearing method. An agro-industrial work system suggests organised farm-based industry, which is unrelated to this traditional household and community water-conservation structure.