The correct answer is: a) Canals.
Canals are the primary source of irrigation in Andhra Pradesh, accounting for over 60% of the state’s irrigated area. The state has a well-developed canal irrigation system, which is fed by rivers such as the Krishna, Godavari, and Pennar. The canal system is used to irrigate a wide variety of crops, including rice, cotton, and sugarcane.
Tanks are another important source of irrigation in Andhra Pradesh, accounting for around 20% of the state’s irrigated area. Tanks are small artificial reservoirs that are used to store rainwater. The water from tanks is used to irrigate crops during the dry season.
Wells are the third most important source of irrigation in Andhra Pradesh, accounting for around 10% of the state’s irrigated area. Wells are used to extract groundwater, which is then used to irrigate crops.
Drip irrigation is a relatively new method of irrigation that is becoming increasingly popular in Andhra Pradesh. Drip irrigation involves the use of small pipes to deliver water directly to the roots of plants. This method of irrigation is very efficient, as it minimizes water loss due to evaporation and runoff.
In conclusion, canals are the primary source of irrigation in Andhra Pradesh. Tanks, wells, and drip irrigation are also important sources of irrigation in the state.