USA HISTORY

Detailed explanation-1: -Canals are second most important source of irrigation in India after wells and tube wells. The Canals are irrigating those lands which have large plains, fertile soils and perennial rivers. The plains of North India are mostly canal irrigated.

Detailed explanation-2: –Regions which have large plains, fertile soils and perennial rivers are irrigated by canals, which is the second most important source of irrigation in India after tubewells.

Detailed explanation-3: -2.1. The most common sources of water for irrigation include rivers, reservoirs and lakes, and groundwater.

Detailed explanation-4: -Irrigation canals are of two types: i) Inundation canals: Taken out directly from the rivers without constructing any barrage or dam. ii) Perennial canals: Taken out from perennial rivers by constructing barrages or dams to regulate the flow of water.

Detailed explanation-5: -The main sources for irrigation water are groundwater from wells, surface water, drainage ponds, rain and municipal water.