briefly.

Ans: Flood Canals: These canals have water released into them only at the time of severe floods so as to stop the destruction caused by floods. In summer and the monsoons, the water level rises in rivers and heavy floods raise water levels to dangerous extreme as well. To protect the barrage from harm, water … Read more

Ans: Seasonal Canals: Rivers which only flow during the monsoon season or summer season are called seasonal rivers. When snow melts in mountainous regions.the increased water level in rivers releases water in these canals. In winter season, these rivers are not functional. The Bahawal and Qaimpur canals emerging from Islam Barrage located on River Sutlej … Read more

Ans: Perennial Canals: These canals provide water throughout the year for irrigational purposes. Upper Chenab, Lower Chenab, Upper Jhelum, Lower Jhelum and Lower Bari Doab are important perennial canals. Related Questions: Who was appointed as the first civil martial law administrator of Pakistan? Q28. Explain the economic value, and reserves of Oil Refineries in Pakistan. … Read more