The correct answer is: a) Mikir Hills
The Mikir Hills are a mountain range in the Indian state of Assam. They form the boundary between the Brahmaputra and Barak valleys. The Mikir Hills are part of the Eastern Himalayas and are a continuation of the Naga Hills. The highest peak in the Mikir Hills is Mount Saramati, which is 3,848 meters (12,625 feet) high.
The Mikir Hills are a popular tourist destination. The hills are covered in dense forests and are home to a variety of wildlife, including tigers, elephants, and deer. The Mikir Hills are also home to a number of ethnic groups, including the Mikirs, the Karbis, and the Dimasa.
The Mikir Hills are a beautiful and diverse region with a rich history and culture. They are a popular tourist destination and are home to a variety of wildlife and ethnic groups.
The other options are incorrect because they do not form the boundary between the Brahmaputra and Barak valleys.
- The Naga Hills are a mountain range in the Indian state of Nagaland. They are located to the north of the Mikir Hills and do not form the boundary between the Brahmaputra and Barak valleys.
- The Mizo Hills are a mountain range in the Indian state of Mizoram. They are located to the south of the Mikir Hills and do not form the boundary between the Brahmaputra and Barak valleys.
- The Jaintia Hills are a mountain range in the Indian state of Meghalaya. They are 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube