The correct answer is: d) Cuddalore and Nagapattinam.
Tamil Nadu’s beach sand minerals are found along the coast of Cuddalore and Nagapattinam. These minerals are used in a variety of industries, including the construction, glass, and ceramics industries.
The beach sand minerals in Tamil Nadu are a valuable resource that is essential to the state’s economy. The state government has taken steps to protect these resources and to ensure that they are used in a sustainable manner.
Option a) Chennai and Kanchipuram is incorrect because the beach sand minerals in these areas are not as abundant as those in Cuddalore and Nagapattinam.
Option b) Kanyakumari and Tirunelveli is incorrect because the beach sand minerals in these areas are not as well-suited for industrial use as those in Cuddalore and Nagapattinam.
Option c) Ramanathapuram and Pudukkottai is incorrect because the beach sand minerals in these areas are not as accessible as those in Cuddalore and Nagapattinam.