Explanations:The question asks for the name of the dam located on the Krishna River in Andhra Pradesh. The Krishna River is one of the major rivers in southern India, flowing through the states of Maharashtra, Karnataka, and Andhra Pradesh. It is an important river for irrigation, hydroelectric power generation, and drinking water supply.
Among the options provided, the correct answer is the Nagarjuna Sagar Dam. The Nagarjuna Sagar Dam is a masonry dam located on the Krishna River in Nalgonda district of Andhra Pradesh. It is one of the largest and most significant dams in India, known for its massive reservoir and hydroelectric power generation capabilities. The dam was constructed between 1955 and 1967 and is named after the ancient Buddhist scholar Nagarjuna, who is believed to have lived in the region.
The dam is a major source of irrigation for the surrounding areas and provides water for the cultivation of crops such as rice, sugarcane, and cotton. It also generates a significant amount of electricity, contributing to the power supply of the region. The dam's reservoir, known as the Nagarjuna Sagar Lake, is a popular tourist destination and is home to a variety of flora and fauna.
It is important to note that the other options provided in the question are incorrect. Gandhi Sagar is a dam located on the Chambal River in Madhya Pradesh, not on the Krishna River. Therefore, it cannot be the correct answer to the question. The options that suggest either or neither of the given dams are also incorrect, as the Nagarjuna Sagar Dam is the correct and only relevant dam on the Krishna River in Andhra Pradesh.