A popular ecotourism destination in the Karbi Anglong hills is:

Tezpur
Garampani
Jorhat
Nagaon

The correct answer is: b) Garampani.

Garampani is a popular ecotourism destination in the Karbi Anglong hills. It is located in the district of Karbi Anglong in the Indian state of Assam. The town is situated on the banks of the Dhansiri River. Garampani is known for its beautiful waterfalls, lush green forests, and wildlife. The town is also a popular destination for trekking and camping.

The other options are incorrect because:

  • Tezpur is a city in the Indian state of Assam. It is the headquarters of Sonitpur district. Tezpur is known for its temples, monasteries, and historical sites.
  • Jorhat is a city in the Indian state of Assam. It is the headquarters of Jorhat district. Jorhat is known for its tea gardens, temples, and historical sites.
  • Nagaon is a city in the Indian state of Assam. It is the headquarters of Nagaon district. Nagaon is known for its temples, mosques, and historical sites.