Question

Which of the following is an example of old folded mountains?
A. Aravallis
B. Himalayas
C. Eastern Ghats
D. Western Ghats

Answer 1

Hint:
- The height of these mountains is now worn down due to erosion processes.
- Sabarmati river and Banas river has its source in this mountain range.
- It came into existence in the Archean era which means about 100 million years ago.

Complete answer:
A. Aravallis: They are aligned in direction from north-east to south-west. Formed in the Archaean Era, which means about several 100 million years ago, they are not only the oldest fold mountains of India but of the world. They extend between Delhi and Palanpur in Gujarat to a distance of about 692 kilometres in the south-west direction. Guru Shikhar peak is the highest point of Aravalli ranges.

B. Himalayas: Also known as Himadri, Himavan and Himachal, these are the youngest fold mountains of the world. They run from north-west to South-east for about 2400 kilometres. They are the home of the loftiest peaks of the world. Mount Everest, which is the highest peak in the world is located in the Himalayas.

C. Western Ghats: also known as Sahyadri, these are located on the Western edge of the Deccan plateau and run from North to South for the distance of 1600 kilometres. Important peaks of Western Ghats are Doda Betta and Makurti.

D. Eastern Ghats: the Eastern Ghats which run almost parallel to the East coast of India is neither structurally united nor physiographically continuous. important peaks located here are Mahendra Giri, Arma Konda, Sinkram Gutta etc.

Therefore, the correct answer is A

Note:
- In 1953, Edmund Hillary from New Zealand and Tenzing Norgay from Nepal became the first to climb Mount Everest peak which is about 8,849 meters high.
- Jindhagada Peak located in Andhra Pradesh is the highest peak in the Eastern Ghats. Its elevation is about 1,690 meters.
- Shipki La and Jelep La are the Himalayan mountain passes from which two important Indo-Tibet trade routes are formed.