Explanation: Andhra Pradesh, a state in southern India, is known for its diverse geography, which includes the fertile valleys of two major rivers: the Godavari and the Krishna. These rivers play a crucial role in the state's agricultural and economic activities.
The Godavari River, often referred to as the "Dakshina Ganga" (Ganges of the South), is the second-longest river in India. It originates in the Western Ghats in Maharashtra and flows through several states, including Andhra Pradesh. The Godavari river valley in Andhra Pradesh is characterized by its rich alluvial soil, which is highly fertile and supports a variety of crops, including rice, sugarcane, and cotton. The river also provides water for irrigation, which is essential for the agricultural productivity of the region.
The Krishna River is another major river that flows through Andhra Pradesh. It originates in the Western Ghats in Maharashtra and flows through Karnataka and Andhra Pradesh before emptying into the Bay of Bengal. The Krishna river valley is also a significant agricultural region, with the river providing water for irrigation and supporting a variety of crops. The river's basin is one of the most densely populated and agriculturally productive regions in India.
Both the Godavari and Krishna rivers form extensive valleys in Andhra Pradesh, which are crucial for the state's agricultural economy. These valleys are characterized by their fertile soil, which is ideal for farming. The rivers also provide water for domestic and industrial use, making them vital for the overall development of the region.
It is important to note that while the Kaveri River is a significant river in southern India, it does not flow through Andhra Pradesh. The Kaveri River is primarily associated with the states of Karnataka and Tamil Nadu, where it forms important river valleys and supports agriculture in those regions.
In conclusion, the correct answer is (D) Only (A) & (B), as the Godavari and Krishna rivers are the major rivers that form valleys in Andhra Pradesh, contributing significantly to the state's geography and economy.