Question

Which of the following is known as the 'Rice bowl of Tamil Nadu'?
A. Bhavani delta
B. Kaveri delta
C. Manimuthar delta
D. Vaigai delta

Answer 1

Hint:A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.

Complete answer:
Thanjavur district is called 'The Rice Bowl of Tamil Nadu' because of its agricultural activities in the delta region.

Bhavani is an Indian river flowing through Indian states of Kerala and Tamil Nadu, India. It's a major tributary of the Kaveri River.
The Kaveri delta region is an important agriculture region in Tamil Nadu and farmers continue to do agriculture, despite climate challenges. This district lies in the Kaveri delta region, the most fertile region in the Tamil Nadu state. It is the main rice producing region.
The Manimuthar Dam is built on manimuthar delta, is located in Manimuthar 50.8 kilometres away from Tirunelveli in Tamil Nadu, India. It is the biggest reservoir of the Tirunelveli district.
The Vaigai is a river in the Tamil Nadu state of southern India; it passes through the towns of Theni, Dindigul and Madurai. The Vaigai River delta is irregular and spreads for large aerial extent.

Hence the correct answer is option B.

Note:The Thanjavur district is famously known as the "Granary of South India", since the rule of Chola dynasty. This district lies in the Kaveri delta region, the most fertile region in the Tamil Nadu state. The district is the main rice producing region in the state and therefore known as "Rice Bowl of Tamil Nadu".