Kerala’s eastern region is dominated by:

The correct answer is: d) Hill ranges.

Kerala’s eastern region is dominated by the Western Ghats, a mountain range that runs along the western coast of India. The Western Ghats are a UNESCO World Heritage Site and are home to a variety of plant and animal life. The hill ranges are also a popular tourist destination, with many trekking and hiking trails.

The other options are incorrect. Option a) is incorrect because Kerala’s eastern region does not have dense forests. Option b) is incorrect because Kerala’s eastern region does not have rolling plains. Option c) is incorrect because Kerala’s eastern region does not have coastal lagoons.