Explanation:
Hydroponics is a method of growing plants using mineral nutrient solutions in water, without soil, allowing controlled environment agriculture.
Explanation:
Cumin (jeera) is a major spice produced in Rajasthan, especially in the Jodhpur and Barmer regions, where dry climate favors its cultivation.
Explanation:
Groundwater irrigation through tube wells and wells is the predominant source, accounting for about 60% of the total irrigated area in India, followed by canals.
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