Which of the following evidence prove/s that the Himalayas are still rising? 1. The frequent occurence of earthquakes in the Himalayan region shows that the Himalayas have not yet attained an isostatic equilibrium and they continue to rise further. 2. The Himalayan rivers have small basins and catchment area. 3. Some of the fossil formations found in the Shiwalik hills are also available in the Tibet Plateau. Select the correct answer using the codes given below.

Which of the following evidence prove/s that the Himalayas are still rising? 1. The frequent occurence of earthquakes in the Himalayan region shows that the Himalayas have not yet attained an isostatic equilibrium and they continue to rise further. 2. The Himalayan rivers have small basins and catchment area. 3. Some of the fossil formations found in the Shiwalik hills are also available in the Tibet Plateau. Select the correct answer using the codes given below. Correct Answer 1 and 3

The correct answer is 1 and 3.

Key Points

  • The frequent occurrence of earthquakes in the Himalayan region shows that the Himalayas have not yet attained an isostatic equilibrium and they continue to rise further. Hence statement 1 is correct.
  • The Himalayan rivers have large basins and catchment areas. Hence statement 2 is incorrect.
  • The Himalayas and the Tibetan Plateau to the north have risen very rapidly.
    • In just 50 million years, peaks such as Mt. Everest have risen to heights of more than 9 km. 
    • Some of the fossil formations found in the Shiwalik hills are also available in the Tibet Plateau. Hence statement 3 is correct.

Additional Information

  •  Himalayas
    • Includes the Himalayas, Purvanchal, and their extensions Arakan Yoma (Myanmar) and Andaman and Nicobar Islands (but we will consider these as islands only).
    • It is the youngest and highly unstable landmass of India.
    • Tectonic movements are very common.
  • Indo-Gangetic Plain
    • Between Peninsular and Himalayan region.
    • Most youthful, monotonous region is prone to tectonic forces.

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