Which of the following is/are consists of “River valleys” of Arunachal Pradesh?1. The Siang Valley2. The Kameng Valley3. The Tirap Valley .Select the correct answer using the code given below:

[A] 1 only

[B] 1 and 2 only

[C] 2 and 3 only

[D] 1, 2 and 3

Answer: D

Notes:

All three valleys are located in Arunachal Pradesh.

Rivers constitute an important part of the topography of the state. Arunachal Pradesh is divided into five major river valleys: 1. The Siang Valley 2. The Kameng Valley 3. The Subansiri Valley 4. The Lohit Valley 5. The Tirap Valley.
These valleys are named after the important rivers of the state.
The major rivers and their tributaries traversing the state are Siang, Kameng, Subansiri, Subansiri, Lohit, Tirap etc.
All these and other countless rivers and rivulets are fed by snow from the Himalayas. Therefore, mostly these small rivulets are perennial in nature.

Source: Shodhganga