Final answer:
The most likely explanation for the dominance of a language in the Eastern Ghats and surrounding regions is cultural and ethnic ties.
Step-by-step explanation:
The most likely explanation for why a particular language is dominant in the Eastern Ghats and surrounding regions is cultural and ethnic ties. Cultural and ethnic ties refer to the shared beliefs, customs, and traditions among a group of people, which often includes a common language. In this case, the dominance of the language can be attributed to the cultural and ethnic connections of the people living in the region, who may have a long history of using and preserving the language.