The correct answer is b) 25 – 35 km.
Kerala’s coastal plain is a narrow strip of land that runs along the Arabian Sea coast of the Indian state of Kerala. It is about 500 kilometers long and varies in width from 10 to 35 kilometers. The coastal plain is made up of alluvial deposits from the rivers that flow into the Arabian Sea. It is a fertile region and is home to a variety of crops, including rice, coconut, and cashew. The coastal plain is also home to a number of important cities, including Thiruvananthapuram, Kochi, and Kozhikode.
Option a) 10-15 km is incorrect because the average width of Kerala’s coastal plain is actually 25 – 35 km.
Option c) 40 â 55 km is incorrect because the average width of Kerala’s coastal plain is actually 25 – 35 km.
Option d) 60- 70 km is incorrect because the average width of Kerala’s coastal plain is actually 25 – 35 km.