The correct answer is C. Tanks (Kere).
Tanks (Kere) are traditional water harvesting structures that are found in Karnataka. They are built to collect rainwater and store it for use during the dry season. Tanks are an important source of water for irrigation, drinking, and domestic purposes. They also help to recharge groundwater aquifers and prevent soil erosion.
Check dams are small dams that are built across streams to slow down the flow of water. They help to trap sediment and improve water quality. Wells are dug holes that are used to access groundwater. They are an important source of water for drinking, irrigation, and domestic purposes. Drip irrigation is a method of irrigation that delivers water directly to the roots of plants. It is a more efficient way of irrigating crops than traditional methods, such as flood irrigation.
Tanks (Kere) are the most important traditional water harvesting practice in Karnataka. They are an important source of water for irrigation, drinking, and domestic purposes. They also help to recharge groundwater aquifers and prevent soil erosion.