The “Lesser Himalayas” in Arunachal Pradesh are known for:

Their high altitude and glaciers
Dense forests and lower elevation
Sparse vegetation and arid conditions
Deep river gorges

The correct answer is: (b) Dense forests and lower elevation.

The Lesser Himalayas are a mountain range in the eastern Himalayas. They are located in the Indian state of Arunachal Pradesh. The Lesser Himalayas are known for their dense forests and lower elevation than the Greater Himalayas. The forests are home to a variety of wildlife, including tigers, elephants, and rhinoceroses. The Lesser Himalayas are also a popular destination for trekking and mountaineering.

The other options are incorrect for the following reasons:

  • Option (a) is incorrect because the Lesser Himalayas are not as high as the Greater Himalayas. The average elevation of the Lesser Himalayas is about 10,000 feet, while the average elevation of the Greater Himalayas is about 15,000 feet.
  • Option (c) is incorrect because the Lesser Himalayas are not as dry as the Greater Himalayas. The Lesser Himalayas receive more rainfall than the Greater Himalayas.
  • Option (d) is incorrect because the Lesser Himalayas do not have as many deep river gorges as the Greater Himalayas. The Lesser Himalayas are more gently sloping than the Greater Himalayas.