Tamil Nadu is the only state with more than one major port because
- AThis state has the longest coastline.
- BThe depth of water is high.
- CThe coast has well defined inlets and bays.
- DThe coast is not very rocky.
Solution & Step-by-step Explanation
Tamil Nadu features a favorable coastal geomorphology with well-defined natural inlets and bays along its dynamic coastline. This structural layout provides optimal physical harbors, allowing the establishment of three distinct major ports: Chennai, Ennore (Kamarajar), and Tuticorin (V.O. Chidambaranar).